1. "Star Trek" (1966): Season 3: Episode 24 -- A woman from Kirk's past exchanges bodies with him and takes control of the ship

    Star Trek:The Original Series - Turnabout Intruder

    "Star Trek" (1966) (269)
    Season 3 : Episode 24
    50:42
  2. "Star Trek" (1966): Season 3: Episode 23 -- Kirk, Spock and McCoy enter a time portal and get stuck in the past on a planet about to be consumed by a nova

    Star Trek:The Original Series - All Our Yesterdays

    "Star Trek" (1966) (269)
    Season 3 : Episode 23
    50:28
  3. "Star Trek" (1966): Season 3: Episode 22 -- Kirk and Spock are forced into a battle of good and evil

    Star Trek:The Original Series - The Savage Curtain

    "Star Trek" (1966) (269)
    Season 3 : Episode 22
    50:43
  4. "Star Trek" (1966): Season 3: Episode 21 -- Kirk is forced into negotiating peace on a planet with severe class inequities

    Star Trek: - The Cloud Minders

    "Star Trek" (1966) (269)
    Season 3 : Episode 21
    50:39
  5. "Star Trek" (1966): Season 3: Episode 20 -- A charismatic leader and his followers hijack the Enterprise in their search for "Eden"

    Star Trek: The Original Series - The Way to Eden

    "Star Trek" (1966) (269)
    Season 3 : Episode 20
    50:42
  6. "Star Trek" (1966): Season 3: Episode 19 -- Kirk and crew meet an immortal human named Flint

    Star Trek: - Requiem for Methuselah

    "Star Trek" (1966) (269)
    Season 3 : Episode 19
    50:40
  7. "Star Trek" (1966): Season 3: Episode 18 -- Zetarians threaten Lieutenant Mira Romaine

    Star Trek: The Original Series-The Lights of Zetar

    "Star Trek" (1966) (269)
    Season 3 : Episode 18
    50:44
  8. "Star Trek" (1966): Season 3: Episode 17 -- A deadly computer image protects a long dead outpost

    Star Trek: The Original Series-That Which Survives

    "Star Trek" (1966) (269)
    Season 3 : Episode 17
    50:40
  9. "Star Trek" (1966): Season 3: Episode 16 -- Kirk is abducted by aliens who wish to use him to help solve their overpopulation problem

    Star Trek:The Original Series - The Mark of Gideon

    "Star Trek" (1966) (269)
    Season 3 : Episode 16
    50:40
  10. "Star Trek" (1966): Season 3: Episode 15 -- Two survivors of a devasted planet remain committed to destroying one another

    Star Trek: - Let That Be Your Last Battlefield

    "Star Trek" (1966) (269)
    Season 3 : Episode 15
    50:43
  11. "Star Trek" (1966): Season 3: Episode 14 -- Kirk is confronted by one of his heroes, now criminally insane

    Star Trek: The Original Series - Whom Gods Destroy

    "Star Trek" (1966) (269)
    Season 3 : Episode 14
    50:44
  12. "Star Trek" (1966): Season 3: Episode 13 -- Kirk is distracted while the Enterprise is threatened

    Star Trek: The Original Series - Elaan of Troyius

    "Star Trek" (1966) (269)
    Season 3 : Episode 13
    50:40
  13. "Star Trek" (1966): Season 3: Episode 12 -- The landing party is used to test an empathic race

    Star Trek: The Original Series - The Empath

    "Star Trek" (1966) (269)
    Season 3 : Episode 12
    50:38
  14. "Star Trek" (1966): Season 3: Episode 11 -- Hyperaccelerated aliens, invisible to the naked eye, take over the Enterprise

    Star Trek: The Original Series - Wink of an Eye

    "Star Trek" (1966) (269)
    Season 3 : Episode 11
    50:40
  15. "Star Trek" (1966): Season 3: Episode 10 -- Platonians use psychokinetic power to toy with the crew

    Star Trek:The Original Series-Plato's Stepchildren

    "Star Trek" (1966) (269)
    Season 3 : Episode 10
    50:39
  16. "Star Trek" (1966): Season 3: Episode 9 -- Kirk is trapped in interphase, while the Enterprise is trapped by a powerful energy web

    Star Trek: - The Tholian Web

    "Star Trek" (1966) (269)
    Season 3 : Episode 9
    50:11
  17. "Star Trek" (1966): Season 3: Episode 8 -- An inhabited asteroid is on a collision course with a Federation planet

    For the World Is Hollow and I Have Touched the Sky

    "Star Trek" (1966) (269)
    Season 3 : Episode 8
    50:38
  18. "Star Trek" (1966): Season 3: Episode 7 -- A malevolent entity pits Klingons against the Enterprise crew

    Star Trek: The Original Series - Day of the Dove

    "Star Trek" (1966) (269)
    Season 3 : Episode 7
    50:41
  19. "Star Trek" (1966): Season 3: Episode 6 -- As punishment for trespassing, Kirk and crew are forced to re-enact the shootout at the OK Corral

    Star Trek:The Original Series - Spectre of the Gun

    "Star Trek" (1966) (269)
    Season 3 : Episode 6
    50:37
  20. "Star Trek" (1966): Season 3: Episode 5 -- The sight of a Medusan ambassador causes insanity

    Star Trek: - Is There In Truth No Beauty?

    "Star Trek" (1966) (269)
    Season 3 : Episode 5
    50:40
  21. "Star Trek" (1966): Season 3: Episode 4 -- A group of children are being controlled by an evil force

    Star Trek: - And the Children Shall Lead

    "Star Trek" (1966) (269)
    Season 3 : Episode 4
    50:41
  22. "Star Trek" (1966): Season 3: Episode 3 -- Kirk loses his memory and begins a life in a native village

    Star Trek: - The Paradise Syndrome

    "Star Trek" (1966) (269)
    Season 3 : Episode 3
    50:40
  23. "Star Trek" (1966): Season 3: Episode 2 -- Disguised as a Romulan, Kirk steals a cloaking device

    Star Trek: The Original Series - The Enterprise Incident

    "Star Trek" (1966) (269)
    Season 3 : Episode 2
    50:42
  24. "Star Trek" (1966): Season 3: Episode 1 -- Kirk pursues aliens who have taken Spock's brain

    Star Trek: The Original Series - Spock's Brain

    "Star Trek" (1966) (269)
    Season 3 : Episode 1
    50:41
  25. "Star Trek" (1966): Season 2: Episode 26 -- The Enterprise goes back in time and discovers a mysterious stranger trying to interfere with 20th-century events

    Star Trek: The Original Series - Assignment: Earth

    "Star Trek" (1966) (269)
    Season 2 : Episode 26
    50:18
  26. "Star Trek" (1966): Season 2: Episode 25 -- Spock and McCoy are forced to fight in Roman-like games

    Star Trek:The Original Series - Bread and Circuses

    "Star Trek" (1966) (269)
    Season 2 : Episode 25
    50:20
  27. "Star Trek" (1966): Season 2: Episode 24 -- Enterprise is used to test the new M-5 computer

    Star Trek: - The Ultimate Computer

    "Star Trek" (1966) (269)
    Season 2 : Episode 24
    50:19
  28. "Star Trek" (1966): Season 2: Episode 23 -- The Enterprise finds a planet devasted by disease that appears to treat the American flag with great reverence

    Star Trek: The Original Series - The Omega Glory

    "Star Trek" (1966) (269)
    Season 2 : Episode 23
    50:21
  29. "Star Trek" (1966): Season 2: Episode 22 -- Extra-galactic beings commandeer the Enterprise in an attempt to return home

    Star Trek: The Original Series - By Any Other Name

    "Star Trek" (1966) (269)
    Season 2 : Episode 22
    50:19
  30. "Star Trek" (1966): Season 2: Episode 21 -- Enterprise is sent to planet Ekos to investigate a disappearance of Federation historian John Gill

    Star Trek: The Original Series - Patterns of Force

    "Star Trek" (1966) (269)
    Season 2 : Episode 21
    50:20