Episode guide
CSI: Crime Scene Investigation
337 episodes · 16 seasons · 2000–2015 · CBS
Season
Season 1
23 episodes
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S01E01 Pilot Gil Grissom is the supervisor of the graveyard shift of Las Vegas' elite crime scene investigators. Holly Gribbs, fresh out of the academy, joins the team. Jim Brass is head of the unit and is trying to scare Gribbs from CSI. Catherine Willows, mother of a young daughter, is the number two CSI on this shift. Warrick Brown and Nick Stokes are competing to solve their 100th case to earn a promotion to CSI 3. Grissom investigates a murder staged to look like a suicide with precious little evidence. Warrick and Catherine take the case of a drunk who breaks into the house where he had been staying and is shot to death. Nick talks to a man who picked up a woman who drugged and robbed him.
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S01E02 Cool Change A man is killed after winning a fortune and then dumping his girlfriend. So, Grissom, Nick, and newcomer to the CSI team, Sara Sidle, investigate this one. Holly Gribbs is in the hospital and Warrick is up for suspension for leaving her at the crime scene by herself.
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S01E03 Crate 'n Burial Grissom, Nick, and Sara search for a kidnapped woman and find more than they expected. Catherine and Warrick investigate the hit and run death of a little girl.
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S01E04 Pledging Mr. Johnson Grissom and Catherine investigate when a leg is found severed from a body in a lake. They suspect the husband and boyfriend. Meanwhile Sara and Nick investigate a fraternity pledging gone terribly wrong.
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S01E05 Friends & Lovers Grissom and Warrick take the case of a young man who is found naked in the desert without an obvious cause of death. Sara gets to find out why the body of a woman who was buried last week is in a dumpster. Catherine and Nick investigate the killing of a school's dean by the school's founder.
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S01E06 Who Are You? Catherine violates department protocol when she takes the case of a rape accusation against her ex-husband. Warrick and Sara search for the missing bullet that will either exonerate or indict a cop for murder. Grissom and Nick investigate when a female skeleton is found under a house buried in cement.
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S01E07 Blood Drops When a teenager and her sister are the sole survivors of the gruesome murder of four members of one family in a quiet suburban neighborhood, Grissom and his entire team investigate the crime. What initially looks like a bizarre cult murder becomes more disturbing when they discover the motive behind the massacre.
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S01E08 Anonymous Royce Harmon was murdered 3 months ago in a scene staged to look like a suicide. Now another murder has taken place. Whoever the killer is he has a thorough knowledge of forensics, he purposefully has left evidence, and has baffled Grissom and his team. Warrick and Nick investigate the case of a man who went over a cliff in his car and is now unconscious.
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S01E09 Unfriendly Skies Grissom and his team investigate the death of a first class passenger on a flight to Las Vegas. The investigators are forced not only to examine the physical evidence, but also to interview all of the first class passengers to get their personal accounts of the incident.
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S01E10 Sex, Lies and Larvae Grissom and Sara investigate a bug riddled body found in the desert. Warrick and Catherine look into the theft of some valuable art. Nick gets to find out why a missing woman's car is found at the bus station. Warrick is suspected of having gambled on duty.
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S01E11 I-15 Murders A woman is abducted from a supermarket. In the store, Grissom finds a bathroom stall door that claims five women have been killed. Warrick is caught in a casino on duty and is paired with a reluctant Sara. Their case is the apparent murder and robbery of a man who is found by his brother. Nick gets pulled in by his prostitute friend who gets in a scuffle with hotel security.
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S01E12 Fahrenheit 932 A man about to go on trial for arson and the murder of his wife and child seeks assistance from Grissom to help prove his innocence. Meanwhile, Catherine and Nick investigate the underground world of sports gambling when a teenager is murdered at close range.
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S01E13 Boom A bomb goes off in an office building killing one and injuring many more. The chief suspect is a security guard who left minutes before the explosion and has knowledge in bomb making. Nick helps his prostitute friend again. After giving in to his passion, she is found dead the next morning. Naturally, Nick is a suspect and to make it worse, Ecklie has the case.
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S01E14 To Halve and to Hold When a single human bone is discovered in the desert, Grissom and Catherine must cover miles of territory to find the rest of the skeleton. And Warrick and Sara trace the death of a male stripper to members of a wedding party who may have celebrated a little too hard the night before the nuptials.
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S01E15 Table Stakes At a swanky fundraiser, attended by the sheriff, a woman turns up dead in the pool. The owner of the house is away and a young couple is housesitting. Warrick looks into an apparent professional hit in the glass elevator of one of the hotels.
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S01E16 Too Tough to Die A woman is abducted from a mall parking garage. She's raped, beaten, shot and left for dead. Sara collects evidence from her and grows attached to her. Nick and Grissom analyze the crime scene. Catherine and Warrick are given boxes of evidence from a shooting that goes to trial in four days. The CSI who had the case has quit and they have to prove what happened. To make Catherine's life more complicated, Eddie has taken out a second mortgage without her knowledge.
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S01E17 Face Lift A body is found in a pottery store in what's apparently a robbery that was interrupted. Fingerprints at the scene seem to match a twenty year old kidnapping case. Sara and Warrick look into a case where a woman burned to death in her home. The woman was burned to an ash but only the chair she was in was burned, the rest of the house is fine. Sara believes they have a case of spontaneous combustion.
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S01E18 $35K O.B.O. A couple leaving a restaurant on their anniversary are killed in the street and their car is stolen. The crime scene is compromised when it rains shortly after the CSIs arrive. It gets more mysterious when the car is found and it becomes a new crime scene. Catherine looks into the collapse of a city owned residence that kills three elderly women. She runs into problems with the city engineer responsible for the building.
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S01E19 Gentle, Gentle The entire team investigates the abduction of the infant child of a well to do family. Suspicion immediately falls on the child's parents.
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S01E20 Sounds of Silence Two teenage girls run over a deaf man with their car but they didn't kill him - he was already dead. Grissom has to find out who did it and he's not getting help from the deaf man's school. Catherine and Nick investigate an apparent mob hit that leaves five dead in a coffee shop.
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S01E21 Justice Is Served Grissom, Nick, and Warrick take the case of a jogger who was killed by a wild animal in the park. It gets complicated when they discover that the jogger had his liver removed after he was killed. Catherine and Sara investigate the death of a six year old girl at a shady carnival.
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S01E22 Evaluation Day On the day Grissom has to evaluate his team, a head is found in the trunk of a car. While Gil and Catherine work on the head, Sara and Nick investigate a body in the desert that's missing it's head. Warrick looks into a murder in juvenile detention in which his young friend James is the only witness.
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S01E23 The Strip Strangler The team is investigating the ongoing murders by a signature killer. The killer has some knowledge of forensics and has left little evidence behind. With the investigation somewhat stalled, the sheriff invites the FBI to join the case. This makes Grissom angry and it only gets worse when Sara offers to bait the killer.
Season
Season 2
23 episodes
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S02E01 Burked Grissom and crew are called in after high roller Tony Braun, a known drug addict, is found dead in his house by a gardener. Since drug paraphernalia are discovered near his body and it is also determined that he had recently inhaled heroin, the cause of death is at first thought to be an overdose. But further examination of the corpse reveals that Braun had been restrained at some point with duct tape, leading Grissom to believe that the victim was forced to ingest lethal amounts of heroin and, perhaps, other drugs.
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S02E02 Chaos Theory The entire CSI team investigates a disappearance at a local university. A young woman vanished, seemingly off the face of the earth. Forensics leads them to possible suspects, and possible suspects all have probable motives, but nothing seems to pan out. This leads our team to discuss the "Chaos Theory." When combined, many seemingly-innocuous events may have a deadly outcome. And closure is not always within reach.
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S02E03 Overload Grissom investigates a possible suicide at a high-profile construction site. Against the wishes of the Sheriff, Grissom pushes to get at the truth of the matter-he thinks the suicide was actually a homicide, and uses theories on electrocution to look for his killer. Meanwhile, Nick and Catherine take on a case with little more than angora fibers to follow. A teenage boy dies while in session with his female psychologist, and traces of angora on his underwear make them believe the psychologist may be practicing very unconventional methods of "therapy."
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S02E04 Bully for You When the class clown at the local high school is found murdered, the CSI team is called to investigate the student, who is also the top jock on campus, is found shot in the back in the school bathroom. The CSI team quickly discovers that the victim was also the class bully, and Grissom is convinced that he is looking for a classmate who was finally pushed to end the abuse once and for all. The team uses sophisticated new equipment to track the scent the killer left behind. Meanwhile, Sara and Nick investigate a case involving a severely decomposed body of an Army veteran found in a bag.
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S02E05 Scuba Doobie-Doo Grissom, Sara and Warrick are called in to investigate an abandoned, blood-splattered apartment and Nick and Catherine must examine a dead scuba diver lodged in a tree. The team members are suspicious when the former tenant of the bloody apartment claims that his missing girlfriend is visiting her parents -- and the parents say she never showed up. Meanwhile, Nick and Catherine are called to the site of a large fire and are confronted with the scuba diver found dead in the top of a tree near Lake Mead. Is it a murder or an urban legend turned fact?
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S02E06 Alter Boys Grissom and his team investigate a murder suspect who is caught red-handed -- burying the victims -- while Catherine and Warrick take on the case of a woman found dead in a hotel spa. As Grissom, Nick and Sara investigate the seemingly clear-cut murder case, Grissom questions the simplicity of the evidence when he discovers that the suspect burying the victims is the brother of a convicted felon. Meanwhile, Catherine and Warrick must determine if the woman found dead in the hotel spa was the victim of negligence, foul play or heat-induced natural causes.
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S02E07 Caged Grissom and Nick investigate the death of a book restorer while Catherine and Sara are called to the scene of a fatal train crash. When the female book restorer is found dead and locked inside a "cage," a temperature-controlled workspace, Grissom and Nick attempt to determine whether this is a case of suicide or homicide. They discover that the key to solving the case may be a co-worker who suffers from autism. Meanwhile, Catherine and Sara are sent to comb through the wreckage of a collision between a train and an SUV and find out if it is a case of road rage or simply an accident.
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S02E08 Slaves of Las Vegas Grissom and Catherine investigate the apparent violent death of a woman found in a sandbox. Their investigation leads them to the underground world of s and m clubs. Meanwhile, Warrick and Sara are called to a crime scene to investigate a shooting, which initially appears to have taken place during a robbery.
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S02E09 And Then There Were None Grissom and his team investigate a casino heist during which innocent victims were shot, while Catherine and Sara are called to the scene of a murder in a remote part of the desert. The evidence found at both crime scenes -- the crowded local casino and the isolated desert convenience store where a clerk was murdered -- has the CSI team drawing a correlation between the two crimes.
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S02E10 Ellie With Grissom away, Warrick is in charge for the first time as the team investigates the murder of the con artist, who has run off with some tourists' money only to get shot and killed in the parking lot. The prime suspect in the case turns out to be Captain Brass' daughter, which causes Brass to take himself off the investigation professionally, but not personally.
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S02E11 Organ Grinder The CSI team is called in when a famous real estate entrepreneur is found dead in a hotel elevator. When the body of Bob Fairmont, the real estate developer, is found, the team discovers that the crime scene has been tampered with and that the victim has been re-dressed. After tracing the cause of death to a lethal poison, the team is shocked to discover that Fairmont's organs have already been removed and donated, making the case a bit more difficult to solve.
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S02E12 You've Got Male Grissom and Sara are called to the crime scene when two murder victims are found hidden in pipes at a construction site in the middle of an alfalfa field, while Catherine and Nick investigate an ostensible hunting accident. The investigation of the construction site murder reveals that the victims were sisters and the relationship of one of the sisters to a former prison inmate is a cause for suspicion -- especially when his presence is traced to the scene of the crime. Meanwhile, Catherine and Nick begin to doubt seriously that the body found in the woods was the victim of a hunting accident.
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S02E13 Identity Crisis Grissom's nemesis, serial killer Paul Millander (Matt O'Toole), reappears and claims a third victim in this gripping episode. The latest slaying matches Millander's previous killings in that it recreates his father's murder, which Millander witnessed as a boy. In each case, the victim is shot once through the chest while lying in a bathtub. A nearby tape recorder contains the person's supposed suicide message. All three victims share the same birthday of Aug. 17---the date Millander's father was slain---with the years in descending order from 1959. So presumably, the killer's next target was born Aug. 17, 1956...which just happens to be Grissom's birthday.
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S02E14 The Finger Catherine is ordered by a kidnapper to accompany a man who is to deliver $1 million in ransom to him or else he will kill the man's mistress. But when the million is paid, they learn that his mistress is already dead.
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S02E15 Burden of Proof Grissom investigates the murder of a Las Vegas photographer whose remains were dumped at a nearby body farm where CSIs routinely study corpses, and his findings reveal that the man was apparently shot to death even though there are no bullet fragments in the body. Also, Grissom's leadership is questioned by some members of his staff.
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S02E16 Primum Non Nocere When Terry Rivers barrels into the opposing team's goalie, a fight breaks out and Terry ends up at the bottom of a huge pile of bodies. After the players are separated, he is found dead...with a deep, bloody gash across his neck. Grissom, Catherine and Sara are called in to investigate. Across town, Warrick and Nick look into the apparent drug-related death of a sax player at a casino. While working on the case, Warrick finds himself drawn to a rising young singer who worked with the dead musician.
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S02E17 Felonius Monk Grissom investigates the murders of four monks who were shot point blank while chanting in a Buddhist temple; Catherine reopens a cold case in which her best friend was murdered, after the man convicted of the crime claims he's innocent shortly before he dies.
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S02E18 Chasing the Bus A bus carrying 23 passengers from Los Angeles to Las Vegas crashes less than 40 miles from its destination, killing nine people. Before he dies, the driver recalls that, moments before the wreck, the steering wheel began vibrating like a jackhammer in his hands, making it impossible for him to control the speeding vehicle. When the bus finally did come to a stop, it was on its right side on top of a sports car that was following it. At the scene, the CSIs discover that a recent parolee was on the bus, but is now unaccounted for---and that there's evidence of foul play.
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S02E19 Stalker Jane Galloway is a nervous breakdown waiting to happen. She has completely shielded herself from the outside world, but that doesn't stop a stalker in her attic from killing her. When CSI arrives, they find her hair dyed and her face shoved in the toilet. This image has a heavy impact on Nick, and they soon realize that this stalker is well acquainted with Nick, which makes the CSI the next target.
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S02E20 Cats in the Cradle Grissom and Catherine investigate the stabbing death of an 80-year-old woman who lived in a run-down house full of cats; Nick and Sara comb through the remains of a car bombing that was, apparently, a murder plot gone awry.
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S02E21 Anatomy of a Lye Grissom and Sara investigate when a man's body, which has been doused with lye, is found buried in a park; Nick tries to determine how a hiker apparently drowned in a desert.
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S02E22 Cross-Jurisdictions Grissom and his crew handle their highest profile case to date when the city's former chief of detectives is slain execution-style in his house following a wild party. Missing from the residence are the chief's trophy wife and their 7-year-old daughter. When several motorists report seeing the girl along an access road near Miami, Catherine and Warrick fly there and meet that city's top CSI, Horatio Caine, who aids them in the investigation.
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S02E23 The Hunger Artist Season Finale. The CSIs investigate when the body of an unidentified young woman is discovered stuffed in an overturned shopping cart near a freeway underpass. Her horribly disfigured and partially decomposed face is a nightmare of blood, scabs and scars, as if she'd been shoved into a fan. A huge circular hole dominates her left cheek. Someone not only wanted her dead, Grissom reasons, but "they wanted her ugly." Adding to the mystery are the cart's other contents: an expensive handbag, fashion magazines and a leather day planner with notes written in code.
Season
Season 3
23 episodes
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S03E01 Revenge Is Best Served Cold Catherine and Nick investigate street racing after one of the drivers is found dead out in the desert at an abandoned airstrip. Back in town, Grissom and his crew look into the death of a poker player who suffered a violent convulsion in the middle of a high-stakes game with three others. As always, things aren't what they seem.
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S03E02 The Accused Is Entitled Grissom and his team investigate a crime involving a popular actor; one woman is dead in his hotel suite and another is missing. They must perform under not only the media spotlight, but also under the scrutiny of Grissom's mentor, Dr. Philip Gerard, who uses his knowledge of Grissom and the other CSIs to discredit their evidence in his role as hired expert for the defense.
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S03E03 Let the Seller Beware Grissom and Catherine investigate the murder of a wealthy couple who are found outside of their home, which was up for sale. Meanwhile, Sara probes the death of a cheerleader who is found eviscerated on a soccer field, her organs having been ingested by her killer.
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S03E04 A Little Murder Grissom suspects murder when the body of a dwarf is found hanging from a rope high above a stage in a casino hotel where a convention of little people is being held. Across town, Catherine is attacked at a crime scene where a man was murdered during what appears to have been a home robbery.
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S03E05 Abra Cadaver Grissom, Warrick, and Sara investigate when a woman vanishes while taking part in a magician's act. The primary suspect is the magician. Catherine and Nick investigate the apparent overdose of a rock star.
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S03E06 The Execution of Catherine Willows Fifteen years ago, Catherine helped put a man on death row for the rape and murder of a coed at a nearby college. The man is about to be executed when he's granted a stay based on new DNA evidence. When bodies turn up at the school, killed in identical manners, it's thought the killer might actually be on the loose.
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S03E07 Fight Night A boxing champ dies in the ring after taking a brutal beating from his nemesis, but Grissom finds evidence that points to murder. Outside, in a nearby parking lot, Catherine works a crime scene where a Los Angeles gang member was gunned down, apparently by a rival gang. Also, Nick investigates a jewelry-store robbery.
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S03E08 Snuff Catherine is called in by a pornographic-film developer to view graphic footage from a snuff movie in which a woman is brutally slain. Grissom investigates an ant covered body that's been dead over a year.
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S03E09 Blood Lust A cab driver seems to run over a boy and is then beaten to death by a mob for racial reasons. When Grissom arrives on the scene, he discovers that the teen has been eviscerated and has stab wounds, but shows no signs of having been struck by the cab.
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S03E10 High and Low Grissom, Warrick, and Nick investigate the case of man who apparently was murdered and pushed off a six story building. Grissom's involvement is cut short by renewed hearing problems. Catherine looks into the murder of a man outside of his regular bar.
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S03E11 Recipe for Murder Grissom and Catherine investigate the grisly meat grinder murder at a slaughterhouse. Warrick and Sara look into the apparent suicide of a troubled young woman.
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S03E12 Got Murder? Some bird watchers find a raven with a human eyeball in its mouth. This eventually leads our CSIs to a divorced man and his 2 children but not much else. Warrick and Grissom look into the circumstances of David's unusual and first autopsy. This takes them to a car dealership where the man worked.
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S03E13 Random Acts of Violence Warrick investigates the drive by murder of a young girl in his old neighborhood. The girl's father is a friend and mentor of Warrick's as well. Warrick struggles to control his emotions to the point where Grissom pulls him off of the case. Nick tackles the murder of a computer company employee. The only supects are the three other employees in the building.
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S03E14 One Hit Wonder Catherine takes the point in the investigation of an escalating series of peeping tom incidents. The crew is racing to stop the attacker before his crimes become more serious assaults. Meanwhile, Sara reopens the dormant case of her friend, a district attorney. The DA is facing surgery to remove a bullet she got in an attack that killed her husband three years prior.
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S03E15 Lady Heather's Box Warrick and Grissom investigate the death of a man found at a foam party. Nick works on the case of a man found dead in his home. Catherine and Grissom investigate the death of a women who was involved with the aforementioned two men, all of which lead to Lady Heather. Catherine desperately tries to find out where her missing daughter and ex-husband are. Sara eventually takes over the case.
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S03E16 Lucky Strike A man driving with a wooden stake in his head dies in front of a casino. Grissom and Nick work to discover the 'vampire" killer. Warrick and Catherine hunt for the killer of a NBA star's 5 year old son.
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S03E17 Crash and Burn An elderly woman crashes her car into a crowded restaurant. One of the patrons is Sara's paramedic boyfriend. Grissom and Nick investigate the possible carbon monoxide murder of a woman in her home.
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S03E18 Precious Metal Catherine, Nick, and Sara investigate a seemingly months old body found in the mountains. Discovery of the man's identity lead the team to the world of robot wars. Warrick and Grissom look into the case of a man found murdered in an alley. Complicating their efforts, the medical examiner "lost" the body for 11 days. Greg helps this case by doing some undercover work.
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S03E19 A Night at the Movies Grissom and Catherine investigate a movie-goer who was stabbed to death; the team comes to a forensic impasse while processing a teenager who died from a gunshot wound.
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S03E20 Last Laugh Grissom and Catherine investigate the murder of a despised comic who died onstage, apparently after drinking from a tainted bottle of water. The case grows more puzzling when a 15-year-old boy dies in a convenience store after drinking the same brand of water. Brass reopens a woman's accidental-death case after spotting the deceased's husband in a flashy new car with a trophy date on his arm.
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S03E21 Forever The trampling death of a trainer by her horse aboard a private jet is investigated by Grissom, Catherine, and Nick. Sara and Warrick look into a Romeo and Juliet scenario in the desert.
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S03E22 Play with Fire Grissom, Sara, and Nick investigate the murder of a woman in the press box of a high school stadium. They arrive less than an hour after the woman's death. Catherine and Warrick try to determine the cause of an explosion in the DNA lab of CSI that seriously injures a lab tech. The personal lives of our characters come into play in this episode.
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S03E23 Inside the Box A professional bank robbery leads to the death of a detective. While investigating the case, Grissom deals with his hearing loss and another CSI gets a personal revelation.
Season
Season 4
23 episodes
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S04E01 Assume Nothing Two couples meet in a bar and one of the couples is murdered. When a second couple is murdered in a similar fashion the team suspects a pair of serial killers are on the loose. The case is complicated by leaks to the press and a judge reluctant to issue a warrant. Catherine gets some troubling news about her father's murder trial.
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S04E02 All for Our Country When the lead suspects in Grissom's serial killer case are murdered, Grissom suspects an inside job. Grissom and Brass are at odds when Grissom suggests it was a cop. Catherine and Sara investigate what happened to a college football fan when his bloated body is found in a bathtub.
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S04E03 Homebodies Grissom and Warrick get the case of an old woman found mummified in her closet. Sara and Nick arrive to investigate a breaking and entering to find a raped teen. These cases are not as disparate as they first seem. Catherine looks into a gun found by a boy. The gun is connected to a week old murder across town that Warrick caught.
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S04E04 Feeling the Heat During Vegas' latest Heat wave of triple digit temperatures, Gil and Catherine investigate a baby locked in a car. Warrick investigates a man's death of an apparent heat stroke in his house. Nick and Sara investigate a woman's body found floating in the lake with a blow to the head.
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S04E05 Fur and Loathing The team is introduced to the "Furry" side of Vegas when a man is found dead on the side of the road, dressed in a racoon suit. Elsewhere in Vegas, a gunshot victim is found in a deep-freezer, frozen solid.
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S04E06 Jackpot A severed head is shipped to Dr. Robbins from Jackpot, Nevada. Grissom goes to Jackpot to find the rest of the body and gets very little cooperation from the locals. Catherine gets an unexpected gift from her father.
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S04E07 Invisible Evidence Warrick's appearance at the preliminary hearing on a rape and murder case goes terribly wrong when the only piece of evidence is thrown out on a technicality. Grissom and the team have 24 hours to make the case with new evidence or the killer will go free.
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S04E08 After the Show A suspect's infatuation with Catherine results in her taking over a high profile case. The case is a missing woman who aspired to be a showgirl. Sara and Nick are angered since it takes the career making case away from them.
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S04E09 Grissom Versus the Volcano The sheriff is under political pressure to find who killed an air marshal with a car bomb that the sheriff witnessed. Grissom, Catherine and Nick are pressured to produce results. Warrick and Sara try to find the murderer of the wife of a singer who headlines on the strip.
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S04E10 Coming of Rage A teenager is found murdered on a construction site. Grissom, Sara, and Warrick follow the lead of blood on a hammer. Nick, with an assist from Catherine, tries to find how a woman was killed by a gunshot on her lawn when no one nearby had a gun.
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S04E11 Eleven Angry Jurors The lone holdout on a jury is found dead in the jury room. The eleven jurors who were voting guilty and who hated the dead juror are the natural suspects. Nick reopens a four year old case when the sister of the victim comes forward with new evidence.
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S04E12 Butterflied A woman found murdered in her home. Her resemblance to Sara causes Grissom to take a personal interest in the case and forces him to examine the decisions he has made in his life.
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S04E13 Suckers Three little CSIs (Grissom, Sara, and Nick) respond to an electrocution at a casino. The casino is hosting Japanese antiquities. The electrocution is just a ruse to steal the central piece of the exhibit. Catherine and Warrick deal with a vampire murder.
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S04E14 Paper or Plastic? A robbery at a grocery store results in a shootout leaving five dead. The police officer at the scene believes Grissom has a grudge against him. The entire team has to process the enormous amount of evidence at the scene.
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S04E15 Early Rollout The whole team must investigate a crime where a husband and his porn star wife were murdered execution style. Things get personal for Catherine when Grissom talks to her about her evaluation. Brass believes that Sara may have some type of problem.
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S04E16 Getting Off Catherine and Sara deal with the death of what at first seems to be a transvestite. Later during autopsy they find out that the make-up he seemed to be wearing was actually facepaint, he was a clown. Grissom, Nick, and Warrick deal with the death of a man in a homeless area. They found out he worked in a recovery center for drug users.
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S04E17 XX A mutilated female body is discovered tied to the undercarriage of a bus carrying prisoners from a women's correctional facility after a severed arm flies out from beneath the vehicle and strikes a car. Catherine leads the investigation and at first believes the woman was escaping, but the evidence increasingly points to murder. Back in town, Warrick probes the death of a gambler who was stabbed multiple times in his brother's kitchen.
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S04E18 Bad to the Bone A violent murder in a casino parking garage and another episode in the police interview room lead the CSIs to one shocking discovery after another. The case involves a missing woman, a long dead body and a missing child.
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S04E19 Bad Words Warrick, Catherine, and Nick try to determine the cause of a house fire that kills a teenage girl. The fire is in the same neighborhood as a similar arson fire. Grissom and Sara investigate a man found dead with letter tiles in his stomach. The man was a competitor in a word game tournament.
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S04E20 Dead Ringer Grissom, Catherine and Nick investigate the death of a runner during a competition. Meanwhile Sara and Warrick investigate the death of a couple in a hotel room, initially thought to be a murder-suicide. Both cases take place during this 'cop' competition, with more than 20.000 attendants (all of them cops). This gives the investigations an interesting turn, as almost all the suspects and all dead people are cops.
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S04E21 Turn of the Screws A roller coaster runs off its track, leaving six people dead. The CSI team investigates whether this was an accident or foul play. One of the deaths, however, is not what it seems, and this takes the case in an unexpected direction. Meanwhile, Catherine and Warrick investigate the death of a 13-year old girl whose body was dumped unceremoniously outside town.
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S04E22 No More Bets Two young men are found murdered after scamming Sam Braun's casinos. Because of her relationship with Braun, Grissom refuses to allow Catherine to participate in the case, leaving the rest of the team to solve the mystery. One of the suspects is the son of a man who was black-listed for cheating years ago in Sam Braun's casinos. Sara finds out that Grissom recommended Nick for the promotion that she wanted.
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S04E23 Bloodlines A casino employee is beaten and raped on her way home from work, but she survives and identifies her attacker. Unfortunately, a DNA test sets him free and Grissom must wrestle with whether evidence can ever lie. Later, Grissom comes to the rescue of a coworker who ends up on the other side of the law.
Season
Season 5
25 episodes
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S05E01 Viva Las Vegas Wild night in Las Vegas has the CSIs simultaneously investigating four fatalities.
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S05E02 Down the Drain .Heavy rain in Las Vegas causes the CSI team to investigate the demise of victims found in the sewage drains.
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S05E03 Harvest .The CSI team investigates the kidnapping of a young girl.
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S05E04 Crow's Feet Catherine and Nick delve into the dark world of hazardous cosmetic procedures to keep people looking young, while Grissom, Sara and Greg investigate a man found dead in a house tented for termites.
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S05E05 Swap Meet The CSI team investigates a suburban murder with a sexual twist.
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S05E06 What's Eating Gilbert Grissom Grissom is haunted by the return of the blue paint serial killer that got away two years ago.
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S05E07 Formalities Grissom works with a new CSI from the dayshift on an apparent kidnapping from a high school formal held at a Vegas casino.
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S05E08 Ch-Ch-Changes A murder investigation leads the CSI team to explore the world of trangenders, which turns into the ultimate case of mistaken identity.
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S05E09 Mea Culpa An undetected piece of evidence in an old murder case has the graveyard shift under internal investigation.
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S05E10 No Humans Involved Tension rises as the CSI teams adjust to their new assignments while investigating two vastly different murders.
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S05E11 Who Shot Sherlock? The CSIs investigate the murder of a Sherlock Holmes enthusiast in his perfectly re-created Victorian Era Baker Street study.
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S05E12 Snakes Catherine and Nick delve into the dangerous world of a Mexican band with a cult-like following, while Warrick and Sofia investigate a man found dead in a handicapped van.
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S05E13 Nesting Dolls The CSIs discover two female corpses that turn out to be part of an undercover Russian mail-order bride operation.
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S05E14 Unbearable The CSIs suspect third party involvement in the murder of a hunter and a bear found in the outskirts of Las Vegas.
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S05E15 King Baby Grissom and Catherine's teams work together to discover the truth behind the death of a larger-than-life casino owner.
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S05E16 Big Middle The CSIs search for a murderer at a convention for overweight adults.
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S05E17 Compulsion Grissom and his team use new technology to process a fingerprint from an old crime scene while they investigate a serial killer.
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S05E18 Spark of Life Grissom finds a connection between the suicide of a woman in the Las Vegas Wilderness and the slaughter of an entire family in a suburban home.
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S05E19 4x4 Wild day in Las Vegas has the CSIs simultaneously investigating four fatalities.
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S05E20 Hollywood Brass Captain Brass goes to Los Angeles to investigate a case involving his estranged daughter.
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S05E21 Committed Grissom and Sara investigate the brutal murder of an inmate at a locked-down state mental hospital.
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S05E22 Weeping Willows The man Catherine flirts with at a bar comes back into her life as a suspect in a murder investigation.
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S05E23 Iced The CSIs find themselves immersed in university life when a couple of amorous freshman are found dead in a college dormitory.
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S05E24 Grave Danger (1) The CSIs are in a desperate race against time to save a member of their team.
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S05E25 Grave Danger (2) The CSIs are in a desperate race against time to save a member of their team.
Season
Season 6
24 episodes
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S06E01 Bodies in Motion The forensic teams come back together under the leadership of Grissom and Catherine just in time to tackle three complex murder cases.
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S06E02 Room Service The forensic teams are called to the hotel suite of a rising young movie star found dead in a compromising position.
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S06E03 Bite Me The CSI team investigates a wife's suspicious death on a flight of stairs.
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S06E04 Shooting Stars When one cult member turns up missing at a mass suicide crime scene, Grissom and his team investigate whether the small cult really committed suicide or were murdered.
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S06E05 Gum Drops The CSI team suspects an entire family has been murdered, but cannot prove it until they find the victims' bodies.
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S06E06 Secrets and Flies The CSIs uncover evidence that leads them to question whether or not a young mother's death was really a suicide.
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S06E07 A Bullet Runs Through It (1) When a police officer is killed in the line of duty, the CSIs must determine whether or not he was a victim of friendly fire.
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S06E08 A Bullet Runs Through It (2) The CSIs sift through the overwhelming evidence from a shootout with drug dealers in order to determine who is responsible for the death of a police officer killed during the incident.
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S06E09 Dog Eat Dog The CSIs investigate the unusual death of a man found dead in a dumpster on Thanksgiving night.
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S06E10 Still Life The lack of evidence in a reported kidnapping case leads Grissom and his team to wonder if the case is fabricated.
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S06E11 Werewolves Grissom and his team uncover unusual evidence in the murder of a man who looked like a werewolf.
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S06E12 Daddy's Little Girl The CSIs investigate the murder of a young man found dead in his girlfriend's garage after a night of taking drugs and partying.
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S06E13 Kiss Kiss Bye Bye Beautiful ex-showgirl from old world Las Vegas hosts a party that ends in murder.
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S06E14 Killer In a CSI first, a crime will be shown from the killer's perspective.
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S06E15 Pirates of the Third Reich The CSIs investigate the unusual death of a young woman whose body appears to have been used for scientific experimentation.
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S06E16 Up in Smoke The CSI team explores the case of a man found stuffed down the chimney of a previous suspect's home. As they progress into the case, they encounter surprises and a few twists.
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S06E17 I Like to Watch Reality show chooses Grissom and his CSI team as their subjects while they investigate smoke bombs being set off at various locations to simulate a building fire allowing the perp to commit his crime.
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S06E18 The Unusual Suspect In the midst of a high profile murder trial, the CSIs are caught off guard when a witness's shocking confession casts doubt on the savage murder of a teenage girl.
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S06E19 Spellbound Grissom and his team investigate the case of a psychic who envisioned her own death.
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S06E20 Poppin' Tags Grissom and his team investigate the murders of three teenagers involved in a rap music rivalry.
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S06E21 Rashomama Solving the case of a wealthy defense attorney killed at her son's wedding is compromised when all of the evidence from the case is stolen along with Nick's car.
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S06E22 Time of Your Death The CSIs must look beneath the surface to uncover the true story behind the death of a high-stakes gambler and ladies man.
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S06E23 Bang Bang Man accused of murdering his wife and co-workers leads the CSIs on a wild chase through a busy Vegas casino.
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S06E24 Way to Go The CSI team holds vigil at the bedside of one of their teammates who is shot in the line of duty and may not survive.
Season
Season 7
24 episodes
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S07E01 Built to Kill (1) When an aspiring dancer is murdered backstage during Cirque du Soleil's KA show, the CSIs investigate what goes on behind-the-scenes to uncover the truth.
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S07E02 Built to Kill (2) Grissom is intrigued when he finds an exact miniature replica of a crime scene involving a famous ex-rock star.
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S07E03 Toe Tags The deceased victims in the CSI coroner's office give voice to their own murder investigations for the first time.
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S07E04 Fannysmackin' The CSI team investigates a series of brutal tourist beatings that take place within the span of a few hours throughout the Las Vegas area.
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S07E05 Double-Cross Grissom and his team investigate the case of a woman found dead in a parish church.
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S07E06 Burn Out When two young boys are reported missing, Grissom goes head to head with a neighborhood pedophile in order to find them.
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S07E07 Post Mortem Grissom gets a chilling surprise when he receives another exact miniature replica of a working crime scene.
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S07E08 Happenstance When identical twins are found dead on the same night, the CSI team investigates whether or not the two murders are connected.
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S07E09 Living Legend Grissom and his team investigate a string of murders in Las Vegas that may be tied to an infamous mob boss from the 1970s who disappeared many years ago.
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S07E10 Loco Motives Case involving a man killed at a poultry manufacturing plant leads the CSI team closer to discovering the identity of the serial killer who leaves miniature replicas of his crime scenes.
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S07E11 Leaving Las Vegas Catherine is determined to connect an out-of-town killing to a recently released Las Vegas murder suspect in an attempt to bring him to justice.
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S07E12 Sweet Jane Catherine and the rest of the CSI team find it challenging to get a good read on their new member as he joins them in tracking a recently active serial killer who has been killing since the 1970s.
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S07E13 Redrum Catherine must deceive her teammates when she agrees to Keppler's covert and controversial plan to catch the killer of a popular politician.
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S07E14 Meet Market Nick and Keppler's case leads them to uncover a black market for human body parts while the rest of the CSI team investigates the case of a wealthy married woman who was found murdered in her own home.
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S07E15 Law of Gravity Grissom returns from his teaching sabbatical as Keppler tries to conceal his ties to a double murder case that he and his CSI colleagues are investigating.
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S07E16 Monster in the Box The miniature killer reveals he/she is still at large by sending Grissom an especially chilling miniature that forewarns a woman and her cat are scheduled to die the next day.
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S07E17 Fallen Idols Grissom and his team are discouraged when they find a pool of blood as they begin investigating the disappearance of a high school basketball star and his cheerleader girlfriend.
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S07E18 Empty Eyes While processing the house where several showgirls were murdered, Sarah is haunted by the terrified eyes and cryptic dying words of the sixth victim she discovers.
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S07E19 Big Shots Greg is forced to again contend with the hostile mother and brother of the hoodlum he killed in self-defense several months ago when the CSI team discovers that the brother is involved in a new murder case.
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S07E20 Lab Rats While Grissom and the rest of the CSIs are out investigating new cases, Hodges leads Archie, Henry, Mandy and Wendy to believe that Grissom wants them to secretly band together that evening in an attempt to solve the four miniature killer cases.
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S07E21 Ending Happy In their attempt to identify the murderer of a has-been boxer who lived among a group of prostitutes who detested him, the CSIs must establish which of several life-threatening acts against him in one night actually killed him.
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S07E22 Leapin' Lizards The CSIs discover that several suspects in a woman's murder are members of a bizarre UFO club who believe that shape-shifting reptile-like aliens have mated with humans for centuries as a means of conquering the human race.
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S07E23 The Good, the Bad & the Dominatrix Sara's uneasy about Grissom being reunited with Lady Heather during the CSI's investigation of her attempted murder by a client she refuses to name.
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S07E24 Living Doll As the CSI team comes closer than ever to identifying the miniature killer, Sara mysteriously goes missing, forcing her relationship with Grissom out into the open.
Season
Season 8
17 episodes
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S08E01 Dead Doll Sara's fate remains in question as the CSI team rushes to find out if she survived an attack by the miniature killer.
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S08E02 A La Cart The CSI team investigates two unusual cases, one involving the suspicious death of a go-cart racer who took his hobby to the highway and paid the price with his life, and a murder at a hip new restaurant where patrons dine in the dark.
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S08E03 Go To Hell The CSI team investigates the murder of an entire family, except for one daughter who supposedly is possessed by the devil.
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S08E04 The Case of the Cross-Dressing Carp Grissom and his team discover a young man strangled to death by hanging. whose body looks like that of a woman.
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S08E05 The Chick Chop Flick Shop Grissom and his team go behind the scenes at a horror adult film studio when one of their lead actresses is murdered on the set of her latest movies.
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S08E06 Who & What In Part One of a Two-Part crossover episode to conclude on "Without A Trace," a kidnap victim from New York who went missing six years ago may be the same boy whose death Grissom and the CSI team are investigating in Las Vegas.
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S08E07 Goodbye & Good Luck In Jorja Fox's last episode, a suspect from Sara's past returns, causing her to question her future as a CSI.
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S08E08 You Kill Me Hodges has ulterior motives when he stages hypothetical murders in the lab to give his colleagues a chance to play CSI. Also, everyone tries to reach out to Grissom after Sara's departure.
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S08E09 Cockroaches Warrick's addiction to pills begins to impact his job when his investigation into the underground mob in Vegas results in him being targeted as the prime suspect in a mob-related murder case.
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S08E10 Lying Down with Dogs Grissom and his team delve into the world of illegal dog fighting to find out who is responsible for the death of a wealthy socialite. Meanwhile, Warrick tries to clear his name in the murder of an exotic dancer.
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S08E11 Bull The CSIs investigate two murders during the annual bull riding rodeo in Vegas that may be connected to illegal bull breeding.
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S08E12 Grissom's Divine Comedy Grissom and his team battle the flu when they are called upon by DDA Klein to investigate the deaths of several key witnesses for a grand jury case against a dangerous Las Vegas gang.
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S08E13 A Thousand Days on Earth The disturbing death of a 3-year-old girl has a great impact on Catherine as she searches for clues to her murder.
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S08E14 Drops' Out Brass and Nick get help from an unlikely source, an incarcerated criminal, when investigating two murders that take place in the same apartment building.
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S08E15 The Theory of Everything Grissom and his team discover several victims who have green blood, leading them to the conclusion that their deaths are somehow connected.
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S08E16 Two and a Half Deaths Grissom and the CSI team become involved in the world of Hollywood comedy when a diva sitcom star meets an untimely demise while filming her show in Las Vegas.
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S08E17 For Gedda Warrick is accused of murdering a famous Vegas gangster and even he is uncertain of his guilt or innocence.
Season
Season 9
24 episodes
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S09E01 For Warrick The CSI team comes together after Warrick is shot in a Las Vegas alleyway,.
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S09E02 The Happy Place Hypnotist who uses her powers of persuasion to rob banks becomes the prime suspect in a murder investigation.
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S09E03 Art Imitates Life When a series of victims are found deceased seemingly in the middle of everyday activities, the CSIs must determine what is causing them to remain upright after death.
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S09E04 Let It Bleed During the course of an investigation, the CSIs discover that their victim, a young woman who was murdered and found with several different blood types in her system, is the daughter of a wanted criminal.
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S09E05 Leave Out All the Rest When the CSI team investigates a case involving the world of domination, Grissom pays a visit to Lady Heather to help find some answers.
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S09E06 Say Uncle After a shooting involving a young boy occurs right in the middle of Koreatown, none of the witnesses will speak to the CSI team investigating the case.
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S09E07 Woulda, Coulda, Shoulda The prime suspect in a murder case from 12 years earlier comes to the forefront of a new CSI investigation.
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S09E08 Young Man with a Horn When a popular young singer is found dead outside an infamous Las Vegas nightclub, the CSI team uncovers a link between the present day crime and a murder from over 50 years ago.
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S09E09 19 Down… When a new murder leads to a connection with an infamous serial killer, Grissom secretly joins the class of well-known criminal pathologist Dr. Raymond Langston, to gain access to the killer and get a crack in the case.
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S09E10 One to Go The CSI team is shocked and saddened when, after working with Dr. Raymond Langston on the "Dick & Jane" murders, Grissom announces that his time as a CSI has come to an end and offers Langston a permanent position on the CSI team.
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S09E11 The Grave Shift The first day on the job for Dr. Langston turns from bad to worse when a simple burglary case quickly overlaps with a complicated arson and homicide case.
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S09E12 Disarmed & Dangerous When an FBI agent who was working undercover is found brutally murdered, the CSI team is called in to assist the victim's partner in finding the killer.
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S09E13 Deep Fried and Minty Fresh Langston and Nick are called to investigate a murder at a fast food restaurant and have quite a task ahead of them when they discover that much of the evidence is coated in cooking oil.
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S09E14 Miscarriage of Justice While Langston testifies in the trial of a respected Congressman, new evidence sends the CSIs back to the lab to reopen the investigation.
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S09E15 Kill Me If You Can The CSIs are called to three different crime scenes in one night that are seemingly unrelated, but each case's forensic evidence reveals a common link.
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S09E16 Turn, Turn, Turn When the CSIs are called to a murder scene at a familiar motel, Nick is thrown for a loop as he pieces together three separate murder investigations that all took place at the same establishment over the course of a year.
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S09E17 No Way Out Langston and Riley are taken hostage during the aftermath of a shootout in an usually calm Las Vegas community.
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S09E18 Mascara Langston is shocked when his former student is found murdered and becomes the focus of a CSI investigation into the world of Mexican wrestling.
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S09E19 The Descent of Man Nick's case of a deceased skydiver takes an interesting turn when Catherine discovers there may be a connection between the skydiver and a mysterious double murder case.
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S09E20 A Space Oddity When Hodges and Wendy run into each other at a science fiction convention for one of their favorite classic television shows, they end up investigating the murder of one of their beloved actors.
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S09E21 If I Had a Hammer… Catherine revisits one of the very first cases she worked as a CSI when the convicted felon in the murder claims the verdict was based on faulty evidence.
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S09E22 The Gone Dead Train An unexplained illness that is affecting random citizens of Las Vegas baffles the CSIs.
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S09E23 Hog Heaven The CSIs are on the case when a member of a motorcycle gang is murdered at a local biker bar.
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S09E24 All In Cache of missing chips from a closed down casino turn up in Vegas and a string of murders follow, leading Langston to use deadly force for the first time in his career as a CSl.
Season
Season 10
23 episodes
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S10E01 Family Affair The CSI team, with the unexpected but welcome return of Sara, comes together to investigate the death of a famous young actress killed in a dubious traffic collision.
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S10E02 Ghost Town When a porn producer and drug dealer are found dead in a relatively upscale Vegas area, the CSIs focus their investigation on members of the neighborhood.
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S10E03 Working Stiffs When two office mates plot to rob a casino, their plan ends with the CSIs investigating a murder.
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S10E04 Coup de Grace When a policeman kills another officer, the CSIs must look to the evidence to determine if the shooting was premeditated or an accident.
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S10E05 Bloodsport An entire college football team comes under investigation when their beloved coach is found murdered in his home.
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S10E06 Death and the Maiden The CSIs discover that two apparently unrelated crimes are actually parts of the same twisted revenge plot.
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S10E07 The Lost Girls The CSI team helps Langston investigate a prostitution ring that may have harbored a hostage Langston had been looking for in Miami and New York.
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S10E08 Lover's Lanes The CSIs investigate a murder at a bowling alley after a critical piece of evidence is revealed during a bowling tournament.
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S10E09 Appendicitement When Nick, Greg and Hodges take Henry to celebrate his birthday at a biker bar, they uncover a double homicide and find several suspects still at the bar who may be the murderers.
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S10E10 Better Off Dead The CSIs dig to find the truth about how a recent shootout at a gun store might connect to a young woman who may have committed suicide.
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S10E11 Sin City Blue Two beautiful women are murdered in a Las Vegas hotel and the CSIs uncover an unusual killer during their investigation. Meanwhile, Langston continues to hunt "Dr. Jekyll".
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S10E12 Long Ball The CSI team delves into the world of professional golf when the body of a legendary player is discovered during a high-profile tournament.
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S10E13 Internal Combustion The case of two high school students, one dead and one missing, lead the CSIs into the underbelly of streetcar racing and a tangled web of deadly competition.
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S10E14 Unshockable When a band member of Rascal Flatts is electrocuted by his own guitar during a concert, the CSI team investigates if it was a case of foul play.
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S10E15 Neverland When a young boy is found murdered, the CSI team uncovers evidence that may link his death to an old case that recently resurfaced.
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S10E16 The Panty Sniffer Catherine and Detective Vartann are thrown together in a hotel room for 24 hours as they stake out a duo making drugs in the room next door. Meanwhile, Nick and Langston work a case that involves a fetish which has become big business in Vegas.
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S10E17 Irradiator When the CSI team investigates the brutal murder of a family, they trace the killer to the house next door, which might belong to the "Dr. Jekyll" serial killer.
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S10E18 Field Mice When Hodges and Wendy take a group of high school CSI Explorer Scouts on a field trip, they embellish their role in solving cases and take their assignment a little bit too far.
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S10E19 World's End When a student is discovered murdered at Lindsey's school, the investigation takes a sharp turn when the CSIs uncover an unlikely connection between the boy's death and atrocities of the past.
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S10E20 Take My Life, Please! Legendary comic from the good old days of Las Vegas is set to reunite with his partner on stage for one night only, until one half of the famous duo is found dead.
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S10E21 Lost & Found Mother thought to be grieving for the loss of her family three years ago becomes a suspect in a CSI investigation.
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S10E22 Doctor Who The CSI team must investigate one of their own when Langston is accused by a former colleague of being part of the Dr. Jekyll murders.
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S10E23 Meat Jekyll The CSI's lives are on the line as they close in on the elusive Dr. Jekyll, and more than one member of the team may not live to see his capture.
Season
Season 11
22 episodes
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S11E01 Shock Waves Langston fights for his life after being stabbed by psychopath Nate Haskell, while the other CSIs attend a funeral that turns deadly.
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S11E02 Pool Shark Hysteria ensues when a shark attacks a woman in the pool at a Las Vegas casino "day club," and the CSIs must determine if the killer is human or shark.
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S11E03 Blood Moon Vampire and werewolf convention is at the heart of a murder investigation in Las Vegas.
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S11E04 Sqweegel Sqweegel, a serial killer who is punishing local heroes that harbor hidden secrets, is on the hunt in Las Vegas.
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S11E05 House of Hoarders Woman who suffers from a condition called "hoarding" becomes a murder suspect when a dead body is found buried under piles of trash and debris inside her home.
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S11E06 Cold Blooded When a college student ends up dead after a "Walking with Dinosaurs" show, the CSIs must determine if his death was murder or accidental.
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S11E07 Bump and Grind When the CSI team discovers the shredded remains of a man, they find themselves with multiple suspects who may be responsible for his death.
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S11E08 Fracked Two men are murdered right before exposing a natural gas company for poisoning residents in a farming town, and the CSIs must discover who is responsible for their deaths.
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S11E09 Wild Life Man's fatal fall from a hotel balcony launches the CSIs into an investigation to determine if his death was suicide or the result of foul play.
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S11E10 418/427 The CSIs set out to track down a pedophile suspected of murdering an FBI agent's wife and kidnapping his children.
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S11E11 Man Up The CSIs question the validity of an online picture depicting a murdered call girl until they find the same woman strangled to death in the dumpster that appears in the photo.
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S11E12 A Kiss Before Frying The CSIs link a body with severe burn marks to possible execution by electric chair - and to a legendary Vegas murder. Meanwhile, Greg asks out Ellen, a pretty schoolteacher and forensics enthusiast who has been touring the crime lab.
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S11E13 The Two Mrs. Grissoms Night full of celebration ends with a bang when the director of a scholarship foundation for the deaf is killed by a deadly car bomb, prompting Sara to interrogate the students and faculty of the college where her mother-in-law works.
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S11E14 All That Cremains Thrift store donation turns gruesome when a dead body is found in a box; meanwhile, Langston's wife pays a surprise visit to the crime lab.
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S11E15 Targets of Obsession Langston testifies against the notorious "Dick & Jane" killer, Nate Haskell. Meanwhile, Nick receives a call from troubled teen Jason McCann to warn him of impending danger.
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S11E16 Turn On, Tune In, Drop Dead The CSIs are on zombie alert when two men initially pronounced dead mysteriously come back to life.
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S11E17 The List While investigating the murder of a convicted ex-cop, the CSIs stumble upon a list in his prison cell with names of several individuals he believed might have been his wife's true killer.
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S11E18 Hitting for the Cycle String of deaths, including a gamer found dead on his couch and a newly divorced man at the bottom of a pool, instigate a bet among the CSIs as to whether they've "hit for the cycle" - a homicide, a suicide, an accidental and a natural death all in one night.
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S11E19 Unleashed Langston and Sara turn to Lady Heather for help in tracking down the culprit responsible for injuring a woman before she was seemingly mauled to death by a mountain lion. Meanwhile, Nick and Dr. Robbins manage to rescue the unborn baby of a teenage girl who appears to have committed suicide.
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S11E20 Father of the Bride Following his escape, Nate Haskell, the notorious "Dick & Jane" killer, resurfaces when he e-mails a disturbing video to the father of one of his brides, threatening to take her life.
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S11E21 Cello and Goodbye Langston becomes more determined than ever to track down Nake Haskell, the notorious "Dick & Jane" killer, after discovering that he's kidnapped his ex-wife, Gloria.
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S11E22 In a Dark, Dark House After years of pursuit and a countless number of murders, Langston comes face-to-face with serial killer Nate Haskell inside the house where his killing spree began.
Season
Season 12
22 episodes
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S12E01 73 Seconds Multiple shootings and stabbings on a public tram leave the CSI team with one witness and a lot of questions.
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S12E02 Tell Tale Hearts Three suspects come forward with three different reasons why they killed an entire family and the CSI team has to determine who is telling the truth.
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S12E03 Bittersweet While on a date, Stokes realizes a piece of art at an exhibit has decomposing body parts in it, which leads to a full-blown investigation. Also, D.B. Russell makes a decision to ground one of the staff from the case.
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S12E04 Maid Man The former Mayor of Las Vegas is shot at the Mob Museum and the CSIs embark on a history lesson in search of clues.
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S12E05 CSI Down When a hijacked medevac helicopter with CSI Brody aboard goes missing, the entire team is on hunt.
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S12E06 Freaks & Geeks When a Jane Doe is found near the freakish attractions of a 19th-century-inspired traveling sideshow, the team investigates a cast of unusual characters.
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S12E07 Brain Doe When the CSI team arrives at a car crash, they find three casualties and a human brain that doesn't belong to any of the victims. Also, D.B. Russell is concerned his son is not focused on college following his suspension from school.
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S12E08 Crime After Crime When the CSI team investigates three seemingly unrelated murders, they discover someone is getting revenge for cold case murders that were never solved.
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S12E09 Zippered When the CSI team discovers a deceased rancher was also a ballistics expert, they have to work with the FBI to solve the case.
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S12E10 Genetic Disorder When the body of a naked dead man is discovered by Dr. Robbins' wife in their master bedroom, it leads to a lot of questions for the CSI team.
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S12E11 Ms. Willows Regrets… When Willows works with the FBI again after a professional hit occurs at a law firm she recommended to her friend, the CSI team identifies shocking similarities at the crime scene.
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S12E12 Willows in the Wind The CSI team says goodbye to Catherine Willows as she makes a life-changing decision.
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S12E13 Tressed to Kill When a woman is found dead and her hair is done up '70s style complete with vintage clothes, the CSI team discovers clues that point to a killer with a hair fetish.
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S12E14 Seeing Red Russell asks for advice from a former colleague on a case involving the death of a man's ex-girlfriend.
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S12E15 Stealing Home When a house is stolen completely off its foundation, the CSIs are on the case in search of answers. Meanwhile, new CSI Julie Finlay showcases her skill in blood analysis.
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S12E16 CSI Unplugged When a blackout cripples the city, the CSIs must revert to old-school methods to solve the case of a missing child.
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S12E17 Trends with Benefits The CSIs are brought in to solve the case of a recently murdered student whose death photo ends up trending on the Internet.
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S12E18 Malice in Wonderland When the CSI team is called in to investigate a robbery-homicide at an "Alice In Wonderland"-themed wedding, they have little to work with to find a killer. Meanwhile, Hodges' mother comes to town, and he wants her to believe Morgan is his girlfriend.
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S12E19 Split Decisions When the CSI team is called in to investigate a man who is shot at point-blank range in a local casino, they shut down the entire building to find their killer.
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S12E20 Altered Stakes When Stokes learns that a man he helped put in prison is going to have his conviction overturned, the CSI team needs to prove the killer is guilty again or he will be released.
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S12E21 Dune and Gloom When a bomb kills an off-road race truck driver mid-race, the CSI team is called on the scene to investigate why.
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S12E22 Homecoming The CSI team investigates three dead bodies just blocks away from a campaign dinner, they think they know who the killer is before making a shocking discovery.
Season
Season 13
22 episodes
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S13E01 Karma to Burn Russell's granddaughter was kidnapped in last season's finale cliffhanger and now he leads the CSI team on a hunt to find her.
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S13E02 Code Blue Plate Special The CSIs arrive at their favorite diner only to discover a gruesome crime scene with eight dead victims and a lot of questions.
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S13E03 Wild Flowers When a girl is shot and killed at a large rave in the desert, the CSI team has to search for clues, find her missing friend and bring the killer to justice.
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S13E04 It Was a Very Good Year When a famed music historian is murdered and left in a piano, it has an emotional effect on Sanders, who had a past with her.
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S13E05 Play Dead When a K-9 is blamed for the death of his partner, the CSI team discovers there's more to the case. Meanwhile, Finlay and Morgan investigate the death of a high-profile divorce lawyer with a lot of enemies.
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S13E06 Pick and Roll Things get personal when D.B. Russell is drawn into the investigation of the death of his son's basketball coach.
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S13E07 Fallen Angels The CSI team investigates the death of a reverend who was killed at the grave site of former CSI Warrick Brown.
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S13E08 CSI on Fire When five bodies are found in what appears to be a meteor site in the middle of the desert, CSI Finlay recognizes one of the casualties, prompting her to revisit her past.
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S13E09 Strip Maul The CSI team lends a hand to local law enforcement on the strip with several arrests until a John Doe is found in car. Also, things become personal for Captain Brass when he discovers some facts about his daughter.
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S13E10 Risky Business Class When five people are killed in a small plane crash a mile off the Vegas strip, the CSI team is called to investigate. Also, Sara feels the strain of having a long-distance relationship with Grissom when a former lover of hers is involved with the crash investigation.
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S13E11 Dead Air The CSIs investigate the demise of a prominent news anchor during a live broadcast.
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S13E12 Double Fault The CSIs need to ace the case involving a rising tennis star. Meanwhile, the CSIs are surprised to hear Hodges is engaged to an Italian bombshell.
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S13E13 In Vino Veritas When CSI Mac Taylor decides to surprise his girlfriend in Vegas, he discovers she's missing and asks his friend D.B. Russell for help. Meanwhile, the CSIs investigate the loss of a local wine collector on part one of a two-part crossover with CSI:NY.
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S13E14 Exile The CSIs investigate the demise of a famous Cuban singer's sister who's in town as part of a U.S. tour. Meanwhile, Hodges begins to get cold feet at the prospect of marrying his Italian bombshell girlfriend.
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S13E15 Forget Me Not Sara is a lead suspect in an investigation after a brief encounter with another man in which she was the last person to see him alive. Also, her separation from Grissom begins to take a toll.
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S13E16 Last Woman Standing When several prominent poker players lose their lives, the CSI team is called to investigate before more victims surface.
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S13E17 Dead of the Class The CSIs join David Phillips at his high school reunion when he discovers the prom queen's been murdered.
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S13E18 Sheltered When the CSIs find a body near a forest reserve, they discover what might be a serial killer and his bizarre lair.
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S13E19 Backfire When the CSIs investigate a triple homicide, Russell has to find a way to connect with a 6-year-old girl who was the sole survivor and witness.
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S13E20 Fearless The CSI team investigates a popular spiritual retreat when a body is found floating in a mud bath. Meanwhile, Hodges questions his marriage plans to Elisabetta.
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S13E21 Ghosts of the Past The CSI team investigates the death of a ghost hunter.
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S13E22 Skin in the Game As Russell and his team investigate a series of murders, one of their own confronts peril on a dangerous undercover mission to get close to the killer.
Season
Season 14
22 episodes
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S14E01 The Devil and D.B. Russell Russell leads the CSI team on a hunt to find Morgan and Ellie Brass following their kidnapping by a ritualistic killer.
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S14E02 Take the Money and Run The CSI team is called in to investigate a murder and robbery at a poker game that had more than a million dollars in chips on the table.
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S14E03 Torch Song The CSI team investigates a fire at a music venue that leaves four people dead, including two band members.
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S14E04 Last Supper When contestants on a reality cooking show accidentally eat human flesh during a competition, the CSI team is brought in to investigate.
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S14E05 Frame by Frame Catherine Willows returns to help the CSIs solve a cold case that has haunted the team for 14 years.
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S14E06 Passed Pawns The CSI team investigates the death of a homeless man who had a huge winning streak at a small casino.
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S14E07 Under a Cloud The CSI team investigates a John Doe found during torrential rains in Vegas. Meanwhile, Greg Sanders is investigated and accused of framing a man for murder seven years ago.
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S14E08 Helpless When a man is found dead inside a human-sized hamster ball, the CSI team is brought in to investigate. Also, the team collaborates with a swing shift CSI on a case involving a serial rapist.
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S14E09 Check In and Check Out The CSI team is called in to investigate the stabbing of a couple found at a local motel that is reminiscent of two incidents that occurred in the same room.
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S14E10 Girls Gone Wild Spa weekend for Sara, Finlay and Morgan turns into a murder investigation and missing persons case when Finlay disappears, as the CSI team must piece together what happened in detail to find her.
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S14E11 The Lost Reindeer When a man is found murdered at an elaborate holiday party complete with real snow and live reindeer, the CSI team is brought in to investigate.
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S14E12 Keep Calm and Carry On Petty crime aboard an inbound plane to Vegas becomes a murder investigation when one of the passengers is found dead.
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S14E13 Boston Brakes The CSIs are called to investigate a car crash and are shocked to discover the victim is someone they know.
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S14E14 De Los Muertos When the CSI team works two separate investigations, one involving a woman found murdered in Mexico and another of a local couple found dead in their driveway, they find the evidence in one case may help the other.
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S14E15 Love for Sale Nick and Greg investigate the death of a 16-year-old girl with ties to a brothel.
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S14E16 Killer Moves The CSIs investigate the murders of an Elvis impersonator and a bird that are strangely connected.
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S14E17 Long Road Home The CSIs investigate the murder of a rock and roll groupie and the disappearance of a prostitute that both have ties to a mysterious band.
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S14E18 Uninvited The CSIs are called to investigate when an entire family is reported to have been missing for a month.
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S14E19 The Fallen Russell is taken hostage after a teenager opens fire in a police station.
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S14E20 Consumed The CSIs track a cannibalistic killer and discover he's not alone.
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S14E21 Kitty The CSIs investigate the cyber-related murder of a prominent casino owner's wife and receive help from the FBI's Cyber Crime Division.
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S14E22 Dead in His Tracks The CSIs investigate a present-day crime with ties to a mob heist that occurred 25 years ago. Meanwhile, Brass has a decision to make when his daughter attempts suicide.
Season
Season 15
18 episodes
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S15E01 The CSI Effect Finlay must deal with a bomb planted in her car, while Russell gets a call from someone claiming to be the Gig Harbor killer.
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S15E02 Buzz Kill The CSI team investigates a robbery and fatal shooting at a medical marijuana shop.
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S15E03 Bad Blood Sara and Greg are quarantined after responding to a crime scene that's contaminated with a deadly pathogen.
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S15E04 The Book of Shadows The CSI team suspects foul play when a chemistry teacher's science experiment goes horribly wron.
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S15E05 Girls Gone Wilder Morgan, Sidle and Finlay try to relax at a forensics conference when a mass shooting occurs on site.
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S15E06 The Twin Paradox Frustration mounts for the CSI team as another victim surfaces and all evidence points to the Gig Harbor Killer.
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S15E07 Road to Recovery The CSI team investigates the death of a woman full of alcohol and drugs in a pool at a rehab facility.
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S15E08 Rubbery Homicide The CSIs delve into the kinky world of "rubber dolls" when they investigate the murder of a man who was stabbed in an alley.
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S15E09 Let's Make a Deal The CSIs investigate a murder at the Clark County jail after an inmate stumbles upon a body while running away from officers.
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S15E10 Dead Rails The CSI team investigates the bizarre death of a man who was killed not once, but twice.
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S15E11 Angle of Attack The CSI's investigation of the victim of an apparent hit and run leads them into the world of aeronautics.
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S15E12 Dead Woods The CSI team reopens a 10-year-old murder/suicide case when the sole survivor claims her accused father was innocent.
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S15E13 The Greater Good The CSI team learns the main suspect in the gig harbor killings is being released from jail due to lack of evidence.
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S15E14 Merchants of Menace The CSI team investigates a homicide at a convention for people who collect macabre murder memorabilia.
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S15E15 Hero to Zero The CSI team investigates the murder of a young victim dressed as a superhero.
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S15E16 The Last Ride The CSI team investigates a death involving a vintage Rolls Royce and a chrome-covered victim.
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S15E17 Under My Skin The CSI team investigates a murder with ties to two teenaged kidnapped girls.
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S15E18 The End Game Season 15 ends with a final showdown between the CSIs and the Gig Harbor killer, whose motives are revealed. Meanwhile, Nick Stokes makes a decision that affects the team moving forward.
Season
Season 16
2 episodes
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S16E01 Immortality (1) In the series finale, Grissom and Willows return to help the CSIs solve a catastrophic case that paralyzes all of Las Vegas
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S16E02 Immortality (2) Part 2 of 2. The series concludes with Grissom and Willows returning to help the CSIs solve a catastrophic case that paralyzes all of Las Vegas.