Lost in Space

S01E01 The Reluctant Stowaway 1965-09-15

As the Jupiter 2 prepares to launch, Colonel Dr. Smith comes on board and ends up being trapped onboard during blastoff. Because of him being there, the Jupiter 2 careens off course and becomes  lost in space.

S01E02 The Derelict 1965-09-22

The Jupiter 2 is pulled into a giant ship occupied by bubble-like creatures.

S01E03 Island in the Sky 1965-09-29

While spacewalking Doctor Robinson is pulled down onto a planet. Major West lands the ship to search for him.

S01E04 There Were Giants in the Earth 1965-10-06

Due to the planet's orbit, the Robinsons are going to freeze to death unless they head south.

S01E05 The Hungry Sea 1965-10-13

After experiencing the extreme cold, the planet gets closer to the sun, roasting it. Smith sends the robot to warn the Robinsons.

S01E06 Welcome Stranger 1965-10-20

The Robinsons meet a fellow Earth explorer who is also lost in space. They help him repair his ship and ask him to take Will and Penny home.

S01E07 My Friend, Mr. Nobody 1965-10-27

Penny strikes up a friendship with a deep voice in a deep cave.

S01E08 Invaders from the Fifth Dimension 1965-11-03

Macabre aliens -- quite literally talking heads -- need a humanoid brain to replace a worn out computer in their spaceship. They capture Smith, but quickly realize that his brain is unsatisfactory. The aliens release Smith so that he can bring them somebody more suitable: "a small Robinson."

S01E09 The Oasis 1965-11-10

The Robinsons face dangers on strange terrain, where water is running low and the heat is getting more intense.

S01E10 The Sky is Falling 1965-11-17

A small, crab-like robot heralds the arrival of a family of colonists from an alien race called the Taurons. John believes that they are peaceful settlers, but Smith insists that they are the vanguard of an invading army.

S01E11 Wish Upon a Star 1965-11-24

Will and Dr. Smith come upon an alien machine that grants wishes, which tests the values of the Robinson group.

S01E12 The Raft 1965-12-01

Will's "message-in-a-bottle" experiments deplete the supply of fuel for the Jupiter 2. John and Don work on an alternate fuel source, but they cannot stabilize the output. Deciding to build a smaller, 2-man craft, they pull the reactor chamber out and use Will's experiments to construct a "space raft."

S01E13 One of Our Dogs is Missing 1965-12-08

With the men off on a mission, the Robinson women must deal with an alien intruder.

S01E14 Attack of the Monster Plants 1965-12-15

Banished from camp for his latest endangering behavior, Dr. Smith discovers alien plants that can duplicate things (including people), which he uses to his advantage.

S01E15 Return from Outer Space 1965-12-29

Using a matter transfer device left behind by the Taurons, Will beams himself back to Earth. He arrives safely in the small town of Hatfield Four Corners, Vermont, but his pleas for help are considered the fantasies of a runaway boy.

S01E16 The Keeper (1) 1966-01-12

The Keeper is an alien who travels the galaxy collecting living pairs of interesting or rare animals. His courtly overtures towards the Robinsons belie his true intention -- to add a pair of humans to his incredible menagerie.

S01E17 The Keeper (2) 1966-01-19

Troubles with The Keeper would be over if Dr. Smith hadn't skulked aboard his ship and released all the animals, putting The Keeper in a position to blackmail the Robinsons for their children

S01E18 The Sky Pirate 1966-01-26

Will becomes fast friends with Captain Alonzo P. Tucker, an Earthling who escaped his alien captors to become a wandering space buccaneer. But Tucker's roguish charm hides a secret that could destroy them all.

S01E19 Ghost in Space 1966-02-02

Trying to contact his Uncle Thaddeus during a séance, Doctor Smith summons a ghostly monster native to the planet.

S01E20 War of the Robots 1966-02-09

After the Robinsons repair a damaged robot, it first helps them and then plots to capture them.

S01E21 The Magic Mirror 1966-02-16

During a cosmic storm, Dr. Smith and Penny discover a strange mirror. Dr. Smith becomes interested in the mirror because it has platinum in it. Meanwhile Penny gets very emotional and wants to stay the way she is when Judy tells her she should dress feminine once in a while. Later Debbie the Bloop is followed into the strange mirror where a pocket universe with a odd boy is discovered.

S01E22 The Challenge 1966-03-02

John and Will fight a battle with an alien father and son that is to the death.

S01E23 The Space Trader 1966-03-09

After ruining the Robinson's food supply, Doctor Smith makes a deal with the space trader and gives his body for food provided he collects it in 200 years. The space trader comes to collect immediately.

S01E24 His Majesty Smith 1966-03-16

Doctor Smith delights that he is made ruler of an alien species until he learns that he is also their sacrifice.

S01E25 The Space Croppers 1966-03-30

The Robinsons run into a group of space hillbillies whom Zachary believes might take him back to Earth.

S01E26 All That Glitters 1966-04-06

Dr. Smith and Penny obtain a ring that will turn anything to platinum.

S01E27 The Lost Civilization 1966-04-13

Will awakes a sleeping princess whom he now must marry. Her race has been awakened and now plans to conquer the universe starting with Earth.

S01E28 A Change of Space 1966-04-20

A strange interdimensional ship turns Will into a genius and Dr. Smith into an old man.

S01E29 Follow the Leader 1966-04-27

An evil spirit possesses John Robinson and plans to fly the Jupiter 2 back to his home world, even at the expense of Will's life.

S02E01 Blast Off Into Space 1966-09-14

Dr Smith and Will befriend an old miner named Nerim. After a series of earthquakes indicates that the planet is breaking up, Dr Smith tries to convince them that it is merely the effects of mining, and no harm will come to the planet. John informs him that he is wrong and that the Robinson family will be departing within the day. It is a race against time to escape the crumbling planet.

S02E02 Wild Adventure 1966-09-21

Shortly after leaving their original crash-site planet, Smith spots a familiar star and, in an amazing show of stellar navigational skill, calculates the course to get back to Earth. He extracts a promise from Don and John that they'll return to Earth, or else he'll destroy his navigation data. They agree, but inform the family at dinnertime that they are headed for Alpha Centauri after all, mainly because the Earth is on the other side of the Sun (how do they know that? - do they know the date? And besides, from Alpha Centauri, Earth revolves clockwise, visible all the time). Smith changes course 180 degrees, then clumsily jettisons most of the fuel. They reach a refueling barge, one of several that Alpha Control put out in 1996, top up the tanks, and resume course for Alpha Centauri, not knowing that they've picked up a tailgater who follows them after Smith reverses course to Earth again. The alarm goes off in the night, and they expend a lot of fuel pulling away from the Earth's

S02E03 The Ghost Planet 1966-09-28

Due to Smith's actions the crew has had to land their ship on an alien planet which is run by cyborgs. Meanwhile the crew try to break free from the captors who promise them power and luxury and they have to save their robot who was crippled by a ray gun.

S02E04 Forbidden World 1966-10-05

The Robinsons encounter a hermit who plans to attack the Jupiter 2 with his army.

S02E05 Space Circus 1966-10-12

A space circus comes to town and the owner wants Will to run away with it.

S02E06 The Prisoners of Space 1966-10-19

The Robinsons are tried for space crimes and the evidence shows that Smith is really responsible for the mishaps.

S02E07 The Android Machine 1966-10-26

Doctor Smith creates an android that they teach to be more human. A humanoid shows up looking for payment for the android.

S02E08 The Deadly Games of Gamma 6 1966-11-02

Dr. Smith ends up in a boxing match with some space gladiators. If he wins he will return to Earth, and if he loses it won't matter because Earth won't be there.

S02E09 The Thief of Outer Space 1966-11-09

Will, Penny and Dr. Smith get involved with a thief that is searching for a princess

S02E10 Curse of Cousin Smith 1966-11-16

Jeremiah Smith shows up to kill Doctor Smith for his inheritance.

S02E11 West of Mars 1966-11-30

Will and Doctor Smith are out and about and a swift gun named Xeno who is on the run from the law and happens to be a exact double for Dr. Smith trades places with him allowing the real Dr. Smith to be arrested in his place.

S02E12 A Visit to Hades 1966-12-07

Doctor Smith while out with Will discovers a golden Lyre on a pedestal in a stone arch. He strums it and is sent to what appears to be Hell.

S02E13 Wreck of the Robot 1966-12-14

The mysterious Saticon's make an offer to the Robinsons to buy the robot. The offer is turned down and then in the middle of the night the robot disappears. Later it is discovered that the Saticon's are more than they seem.

S02E14 The Dream Monster 1966-12-21

Sesmar cons Doctor Smith into using a special camera to take pictures of the Robinsons. They're personalities are then stolen from them for use in a Frankenstein type android that Sesmar is in the process of creating.

S02E15 The Golden Man 1966-12-28

Beauty meets the beast, two aliens fighting a war land on the planet and the Robinsons are stuck in the middle of things. Handsome golden man Keema and the frog faced alien have the Robinson's choosing sides, will it be the right one?

S02E16 The Girl from the Green Dimension 1967-01-04

Athena, the green girl from "Wild Adventure" who lured Doctor Smith out into space, returns and is still in love with him. Her suitor from the Green dimension follows her and turns Will green.

S02E17 The Questing Beast 1967-01-11

Sagramonte a knight errant, comes to the planet in search of Gundemar The Questing Beast. He then takes Dr. Smith and Will hostage.

S02E18 The Toymaker 1967-01-25

Doctor Smith and Will discover a old android machine from the Celestial Department store and end up getting sucked into the machine. There they meet a toymaker who refuses to believe that they are both human.

S02E19 Mutiny in Space 1967-02-01

A space pirate looking for his crew that mutinied finds Will and Dr. Smith trying to repair his empty ship.

S02E20 The Space Vikings 1967-02-08

Through some harmless playacting, Dr. Smith unintentionally conjures up the magical gauntlets and war hammer of the Norse god Thor. Taking him for a mighty warrior, Brynhilda spirits Smith off to Asgard for a showdown with Thor.

S02E21 Rocket to Earth 1967-02-15

Smith is keen for the job of sorcerer's apprentice after learning that a space magician's rocket ship can reach Earth in a few hours.

S02E22 The Cave of the Wizards 1967-02-22

Shortly before lift-off, Dr. Smith discovers a cave inhabited by devices, which are the remnants of a once-mighty civilization; the Draconians. As the countdown draws near, Dr. Smith falls ever-more-so under the influence of the Draconians.

S02E23 Treasure of the Lost Planet 1967-03-01

Dr. Smith, Penny and Will are out playing a game and Penny finds a gold coin on the game board. They then find a trail of the gold coins and Dr. Smith falls into a cave containing a skeleton of an alien along with a old treasure chest. The Robinsons then have another encounter with the notorious space pirate Captain Tucker.

S02E24 Revolt of the Androids 1967-03-08

In the second of two sequels to Lost in Space: The Android Machine (1966), Verda's sheltered by the Robinsons after she's marked for destruction by the Celestial Department Store. To that end, the store dispatches a killer android: IDAK (Instant Destroyer And Killer).

S02E25 The Colonists 1967-03-15

A female alien meets the Robinsons and uses them to help erect an arch to bring her people to colonize the Robinsons' planet.

S02E26 Trip Through the Robot 1967-03-22

While in the Valley of Shadows the Robot is affected by strange forces and grows to the size of a building. Will and Dr. Smith enter the Robot to try to reverse the process and save him.

S02E27 The Phantom Family 1967-03-29

While John and Maureen are away observing volcanic activity, the alien scientist Lemnoc captures Don, Judy, Penny, and Dr. Smith and replaces them with android duplicates. Lemnoc then forces Will and the Robot to train the duplicates in survival skills, hoping that they will be an inspiration to his own people, who are losing the will to live.

S02E28 The Mechanical Men 1967-04-05

The planet is invaded by an army of tiny robots who closely resemble the Robinsons' Robot and proclaim him as their long-predicted king. The Robot agrees to become their king, but when he is not the ruthless ruler they expected, they decide that he needs some "Dr. Smith" in him.

S02E29 The Astral Traveler 1967-04-12

Will and Dr. Smith find a cave that transports them to Earth, 19th-century Scotland.

S02E30 The Galaxy Gift 1967-04-26

Penny will not give up the belt entrusted to her by an alien even if it means their deaths

S03E01 Condemned of Space 1967-09-06

The Robinsons leave their planet to escape a collision with a comet and find a ship full of frozen convicts.

S03E02 Visit to a Hostile Planet 1967-09-13

Passing through a time warp, the Robinsons do return to Earth in the year 1947. They are mistaken as invaders and start the UFO scare of the 194

S03E03 Kidnapped in Space 1967-09-20

A spaceship requests medical help for their computer and Dr. Smith has to perform brain surgery on it.

S03E04 Hunter's Moon 1967-09-27

After killing a hostile alien, Professor Robinson comes across a "hunter" and he must replace his dead prey.

S03E05 The Space Primevals 1967-10-04

On a planet where a primitive people are ruled by a computer, Doctor Smith goes against character and saves Major West's life.

S03E06 Space Destructors 1967-10-11

Using an alien machine Doctor Smith creates an army of cyborgs to conquer the universe.

S03E07 The Haunted Lighthouse 1967-10-18

The Robinsons take a boy home to his planet and come across a spaceship that is a space lighthouse. The boy gets angry when they tell him they don't have enough fuel to get him home.

S03E08 Flight Into the Future 1967-10-25

Accidentally landing on a planet, Will, Doctor Smith and the Robot find the Jupiter 2 is now an archaeological site and that they are in the future.

S03E09 Collision of Planets 1967-11-08

A group of space hippies is going to destroy the planet the Robinsons are on.

S03E10 Space Creature 1967-11-15

When a gaseous creature engulfs the Jupiter 2, the other crew members disappear leaving Will and Doctor Smith alone.

S03E11 Deadliest of the Species 1967-11-22

The Robot "falls in love" with an evil female robot sought by two aliens.

S03E12 A Day at the Zoo 1967-11-29

Galaxic showman Farnum B. wants to exhibit the Robinsons in his zoo.

S03E13 Two Weeks in Space 1967-12-13

Two escaped thieves transform themselves into humans and pretend to be tourists as Smith turns the Jupiter 2 into a hotel.

S03E14 Castles in Space 1967-12-20

Will meets a princess who is escaping two bounty hunters, yet Will gets kidnapped instead.

S03E15 The Anti-Matter Man 1967-12-27

John Robinson and Don West are transported onto a strange new world where their evil opposites exist and plan to change places with them. Will, the Robot and a reluctant Dr. Smith set out to find and help the real Don and John only to be pursued by an evil John Robinson.

S03E16 Target Earth 1968-01-03

Landing on a planet some shapeless beings duplicate the Robinsons and take the Jupiter 2 with the intent of conquering Earth. Will gets aboard to stop them.

S03E17 Princess of Space 1968-01-10

Penny is kidnapped by aliens who think that she is the missing Princess Alpha.

S03E18 The Time Merchant 1968-01-17

After making a deal with the Time Merchant, Dr. Smith returns to Earth just before the launch of the Jupiter II. If he doesn't get on it, the Jupiter II will crash into an asteroid.

S03E19 The Promised Planet 1968-01-24

When the Robinsons nearly reach Alpha Centauri, they find a human base run by young people. They convince the adults that Penny and Will aren't their children and they leave in the Jupiter 2.

S03E20 Fugitives in Space 1968-01-31

Don and Doctor Smith are sent to an intergalactic prison after coming across an escapee.

S03E21 Space Beauty 1968-02-14

Farnum B, the intergalactic showman, again encounters the Robinsons as he presents the Galaxy Beauty Pageant, and its sponsor wants Judy to enter - and win.

S03E22 The Flaming Planet 1968-02-21

Doctor Smith disposes of a plant which has grown to an intense size, and becomes attached to the hull of the Jupiter 2.

S03E23 The Great Vegetable Rebellion 1968-02-28

Smith lands the pod on a planet where plants are the highest form of intelligence. The Robinsons land only to be captured by Tybo, a giant carrot. He plans to turn them into trees while Dr. Smith becomes a stalk of celery.

S03E24 Junkyard in Space 1968-03-06

With the Robinsons running out of food, Dr. Smith trades the ship and the Robot to a junk man for food.