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The Best Episodes of Star Trek Season 3

Every episode of Star Trek Season 3 ranked from best to worst. Discover the Best Episodes of Star Trek Season 3!

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Space. The Final Frontier. The U.S.S. Enterprise embarks on a five year mission to explore the galaxy. The Enterprise is under the command of Captain James T. Kirk with First Officer Mr. Spock, from the

Airs on

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Episode Rankings

  1. #1 Fan Favorite
    Star Trek Season 3 Episode 1 - Spock's Brain
    5.7/10(4138 votes)

    #1 - Spock's Brain

    S3:E1

    An alien female beams aboard the ship and, after incapacitating the rest of the crew, surgically removes Spock's brain. Kirk and the crew have just hours to locate and replace it before Spock's body dies.

    Director:Marc Daniels

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  2. Star Trek Season 3 Episode 2 - The Enterprise Incident
    8.4/10(4456 votes)

    #2 - The Enterprise Incident

    S3:E2

    The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.

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  3. Star Trek Season 3 Episode 3 - The Paradise Syndrome
    6.7/10(3793 votes)

    #3 - The Paradise Syndrome

    S3:E3

    An alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.

    Director:Jud Taylor

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  4. Star Trek Season 3 Episode 4 - And the Children Shall Lead
    5.2/10(3885 votes)

    #4 - And the Children Shall Lead

    S3:E4

    On a distant planet, Kirk, Spock and McCoy find a scientific team dead, and their children who, unknown to the crew, have great powers at their disposal.

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  5. Star Trek Season 3 Episode 5 - Is There in Truth No Beauty?
    6.9/10(3690 votes)

    #5 - Is There in Truth No Beauty?

    S3:E5

    The Enterprise travels with an alien ambassador whose appearance induces madness.

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  6. Star Trek Season 3 Episode 6 - Spectre of the Gun
    7.2/10(3872 votes)

    #6 - Spectre of the Gun

    S3:E6

    Having been found trespassers into Melkotian space, Captain Kirk and his companions are sent to die in a re-enactment of the gunfight at the O.K. Corral.

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  8. Star Trek Season 3 Episode 7 - Day of the Dove
    7.7/10(3832 votes)

    #7 - Day of the Dove

    S3:E7

    An alien force drives the crew of the Enterprise into brutal conflict with the Klingons.

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  9. Star Trek Season 3 Episode 8 - For the World Is Hollow and I Have Touched the Sky
    7.1/10(3590 votes)

    #8 - For the World Is Hollow and I Have Touched the Sky

    S3:E8

    The crew of the Enterprise rush to stop an asteroid from colliding with a Federation world, but discover the asteroid is actually an inhabited generation ship.

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  10. Star Trek Season 3 Episode 9 - The Tholian Web
    8.0/10(3915 votes)

    #9 - The Tholian Web

    S3:E9

    Captain Kirk is caught between dimensions while the crew of the Enterprise works to retrieve him. All the while, the Tholians demand that the Enterprise leave their space.

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  11. Star Trek Season 3 Episode 10 - Plato's Stepchildren
    6.5/10(3776 votes)

    #10 - Plato's Stepchildren

    S3:E10

    The crew of the Enterprise encounters an ageless and sadistic race of humanoids with the power of telekinesis and who claim to have organized their society around Ancient Greek ideals.

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  12. Star Trek Season 3 Episode 11 - Wink of an Eye
    7.3/10(3631 votes)

    #11 - Wink of an Eye

    S3:E11

    Invisible "time-accelerated" aliens take over the Enterprise and attempt to abduct the crew for use as "genetic stock".

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  13. Star Trek Season 3 Episode 12 - The Empath
    6.5/10(3645 votes)

    #12 - The Empath

    S3:E12

    While visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.

    Director:John Erman

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  14. Star Trek Season 3 Episode 13 - Elaan of Troyius
    7.0/10(3640 votes)

    #13 - Elaan of Troyius

    S3:E13

    The USS Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.

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  15. Star Trek Season 3 Episode 14 - Whom Gods Destroy
    6.9/10(3558 votes)

    #14 - Whom Gods Destroy

    S3:E14

    Captain Kirk faces off with a demented shape-shifting starship captain determined to control the universe.

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  16. Star Trek Season 3 Episode 15 - Let That Be Your Last Battlefield
    7.1/10(3742 votes)

    #15 - Let That Be Your Last Battlefield

    S3:E15

    The Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.

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  17. Star Trek Season 3 Episode 16 - The Mark of Gideon
    6.5/10(3455 votes)

    #16 - The Mark of Gideon

    S3:E16

    A race of overpopulated aliens abduct Captain Kirk to solve their problem.

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  18. Star Trek Season 3 Episode 17 - That Which Survives
    6.5/10(3380 votes)

    #17 - That Which Survives

    S3:E17

    Kirk, McCoy, and Sulu are stranded on a barren planet where a mysterious woman attempts to kill them one at a time, while the Enterprise must travel halfway across the galaxy to rescue them.

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  19. Star Trek Season 3 Episode 18 - The Lights of Zetar
    6.2/10(3331 votes)

    #18 - The Lights of Zetar

    S3:E18

    Strange incorporeal aliens threaten the Memory Alpha station and the Enterprise.

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  20. Star Trek Season 3 Episode 19 - Requiem for Methuselah
    7.3/10(3719 votes)

    #19 - Requiem for Methuselah

    S3:E19

    The crew of the Enterprise encounter an immortal human in this science fiction variation on Shakespeare's The Tempest.

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  21. Star Trek Season 3 Episode 20 - The Way to Eden
    5.4/10(3912 votes)

    #20 - The Way to Eden

    S3:E20

    The Enterprise picks up a group of space "hippies" looking for Eden.

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  22. Star Trek Season 3 Episode 21 - The Cloud Minders
    7.1/10(3467 votes)

    #21 - The Cloud Minders

    S3:E21

    Captain Kirk races against time to acquire plague-fighting minerals from a world in the midst of a civil uprising against a grievous social class disparity.

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  23. Star Trek Season 3 Episode 22 - The Savage Curtain
    6.6/10(3492 votes)

    #22 - The Savage Curtain

    S3:E22

    Aliens force Captain Kirk and First Officer Spock to join forces with "Abraham Lincoln" and "Surak" to battle villains in a contest of good vs. evil.

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  24. Star Trek Season 3 Episode 23 - All Our Yesterdays
    8.1/10(3900 votes)

    #23 - All Our Yesterdays

    S3:E23

    Kirk, Spock and McCoy are trapped in two parts of another planet's past - a world threatened with destruction when its sun goes supernova.

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  25. Star Trek Season 3 Episode 24 - Turnabout Intruder
    6.8/10(3438 votes)

    #24 - Turnabout Intruder

    S3:E24

    The Enterprise is in danger when Janice Lester, one of Kirk's former lovers, steals his body.

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Season 3 Ratings Summary

"Spock's Brain" is the best rated episode of "Star Trek" season 3. It scored 5.7/10 based on 4138 votes. Directed by Marc Daniels and written by Gene L. Coon, it aired on 9/20/1968. This episode is rated 2.7 points higher than the second-best, "The Enterprise Incident".