Star Trek
Obsession
TV Flash files “Obsession” as hour 42 of 79 in the TV Flash guide — Star Trek (1966–1969) on NBC, season 2, episode 13, aired 1967-12-15, 60 min.
From the desk
How this hour is filed
This leaf is S02E13: listed hour 42 of 79 in the Star Trek guide, hour 13 of 26 in season 2. It aired 1967-12-15 (60 min). The listed hour before it is “The Deadly Years” (S02E12). Next is “Wolf in the Fold” (S02E14).

Catalog log
Broadcast listing — not a TV Flash recap.
On an obscure planet, Kirk smells something that reminds him of the past. And then two crewman die, their ghastly pallor betraying the fact that every red blood cell in their bodies has been destroyed, the hemoglobin neatly removed. A long time ago, very far from here, Kirk was a young Lieutenant about the Farragut when that ship encountered the cause: a mysterious, gaseous cloud that feeds on blood. Now, Kirk is obsessed with destroying the monster that killed his then mentor, the Farragut's captain Garrovik. Perhaps to an unhealthy degree. Or, given what Spock discovers, perhaps not.
Viewer FAQ
Where does Obsession sit in the Star Trek guide?
S02E13 is listed hour 42 of 79 — hour 13 of 26 in season 2, season 2 episode 13.
When did Star Trek S02E13 air?
Obsession aired 1967-12-15 and is listed at 60 minutes.
Where should I start if I have never seen original Star Trek?
The aired opener is “The Man Trap,” but many first-timers prefer “Where No Man Has Gone Before,” the second pilot and a cleaner crew contract. Either is fair. Do not start at season three.
In the series
Why this series still plays
Watch it for the fandom operating system still running: letter campaigns that saved a starship, ship wars before we had the word, and hours the timeline still litigates. Cancelled is not dead if the group chat refuses to log off.
So about last night's group chat: someone said "The Man Trap" is a fake start, someone else dropped a Kirk/Spock still captioned canon, your honor, and a third person announced that season three is optional like that is a personality. This is not new discourse. This is 1966 with better lighting and worse sleep. NBC tried to bury a space opera on a Friday, then a Tuesday, then wherever the schedule could hide a show it did not understand. The audience refused to log off. (I said spoiler-free. I lied a little: the…
Filed against
- William Shatner as Capt. James T. Kirk
William Shatner’s Capt. James T. Kirk commanded Star Trek into cancelled immortality — fandom’s founding text, letter campaigns, conventions, ship wars before we had the word, and the doctrine that dead shows can live forever. Staccato…
- Leonard Nimoy as Spock
Leonard Nimoy’s Spock is Star Trek’s coworker who will not do small talk — a cancelled space opera that invented the fandom operating system. Letter campaigns, conventions, ship wars, the doctrine that cancelled can still mean immortal.…
- DeForest Kelley as Dr. Leonard McCoy
DeForest Kelley’s Dr. Leonard McCoy was Star Trek’s group chat that said the quiet part — ship’s doctor as workplace heat on a cancelled space opera that refused to die. Letter campaigns, conventions, ship wars before we had the word. TV…
- Nichelle Nichols as Uhura
Nichelle Nichols’s Uhura is Star Trek’s communications officer as a fandom operating system — bridge presence that letter campaigns and convention culture refused to let NBC bury. Original Trek invented ship wars before we had the word;…
- James Doohan as Scotty
James Doohan’s Scotty is Star Trek as the miracle in the engine room — a cancelled space opera’s practical magic, beamed up from a three-season NBC run that fandom refused to let die. Conventions, letter campaigns, and the idea that…