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The Best Episodes of Star Trek Season 2

Every episode of Star Trek Season 2 ranked from best to worst. Discover the Best Episodes of Star Trek Season 2!

Binge this in 20h 55m·Peaking at 9.0/10
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Episode Rankings

  1. #1 Fan Favorite
    Star Trek Season 2 Episode 4 - Mirror, Mirror
    9.0/10(5996 votes)

    S2:E4

    A transporter mishap swaps Captain Kirk and his companions with their evil counterparts in a parallel universe. In the so-called Mirror Universe, the Enterprise is a ship of the Terran Empire, an organization as evil as the United Federation of Planets is benevolent.

    Director:Marc Daniels
    Writer:Jerome Bixby

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  2. Star Trek Season 2 Episode 6 - The Doomsday Machine
    8.7/10(5412 votes)

    S2:E6

    The starship Enterprise and its heavily-damaged sister ship, the USS Constellation, must work together to stop an alien planet-killing machine headed for the heart of Federation territory.

    Director:Marc Daniels
    Writer:Norman Spinrad

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  3. Star Trek Season 2 Episode 15 - The Trouble With Tribbles
    8.7/10(5777 votes)

    S2:E15

    The Enterprise must protect a very important shipment of grain from both Klingons and some adorable creatures called tribbles.

    Director:Joseph Pevney
    Writer:David Gerrold

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  4. Star Trek Season 2 Episode 1 - Amok Time
    8.6/10(5596 votes)

    S2:E1

    First Officer Spock returns to his home world for a brutal Vulcan mating ritual.

    Director:Joseph Pevney
    Writer:Theodore Sturgeon

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  5. Star Trek Season 2 Episode 10 - Journey to Babel
    8.5/10(4787 votes)

    S2:E10

    The Enterprise must transport dignitaries to a peace conference, with an assassin on the loose.

    Director:Joseph Pevney
    Writer:D.C. Fontana

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  6. Star Trek Season 2 Episode 24 - The Ultimate Computer
    8.0/10(4098 votes)

    S2:E24

    A skeleton Enterprise crew are assigned to test a revolutionary computer system that is given total control of the ship.

    Director:John Meredyth Lucas
    Writers:D.C. Fontana, Laurence N. Wolfe

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  7. Star Trek Season 2 Episode 17 - A Piece of the Action
    7.7/10(4510 votes)

    S2:E17

    The Enterprise visits a planet with an Earth-like 1920s gangster culture.

    Director:James Komack
    Writers:Gene L. Coon, David P. Harmon

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  8. Star Trek Season 2 Episode 3 - The Changeling
    7.6/10(4360 votes)

    S2:E3

    The crew of the USS Enterprise deals with an indestructible planet-destroying space probe.

    Director:Marc Daniels
    Writer:John Meredyth Lucas

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  9. Star Trek Season 2 Episode 26 - Assignment: Earth
    7.6/10(4443 votes)

    S2:E26

    While back in time observing Earth in 1968, the Enterprise crew encounters the mysterious Gary Seven who has his own agenda on the planet.

    Director:Marc Daniels
    Writers:Gene Roddenberry, Art Wallace

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  10. Star Trek Season 2 Episode 18 - The Immunity Syndrome
    7.5/10(3861 votes)

    S2:E18

    The crew of the Enterprise encounters an energy-draining field which may be able to destroy the galaxy.

    Director:Joseph Pevney
    Writer:Robert Sabaroff

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  11. Star Trek Season 2 Episode 21 - Patterns of Force
    7.5/10(4094 votes)

    S2:E21

    The crew of the Enterprise tracks down a Federation observer on a planet dominated by a "Naziesque" regime.

    Director:Vincent McEveety
    Writer:John Meredyth Lucas

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  12. Star Trek Season 2 Episode 22 - By Any Other Name
    7.5/10(3992 votes)

    S2:E22

    Beings from another galaxy commandeer the Enterprise in an attempt to return home.

    Director:Marc Daniels
    Writers:D.C. Fontana, Jerome Bixby

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  13. Star Trek Season 2 Episode 20 - Return to Tomorrow
    7.4/10(3915 votes)

    S2:E20

    Ancient alien minds are given control of Captain Kirk's and First Officer Spock's bodies.

    Director:Ralph Senensky
    Writer:John T. Dugan

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  14. Star Trek Season 2 Episode 8 - I, Mudd
    7.3/10(4446 votes)

    S2:E8

    Captain Kirk has a second run-in with the conman, Harry Mudd. Mudd is now the supreme ruler of a planet of androids who cater to his every whim.

    Director:Marc Daniels
    Writers:Gene Roddenberry, David Gerrold

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  15. Star Trek Season 2 Episode 12 - The Deadly Years
    7.3/10(4079 votes)

    S2:E12

    Strange radiation exposes the command crew of the Enterprise to the effects of rapid aging.

    Director:Joseph Pevney
    Writer:David P. Harmon

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  16. Star Trek Season 2 Episode 9 - Metamorphosis
    7.2/10(4319 votes)

    S2:E9

    A shuttle crew from the USS Enterprise encounters a man out of history and his mysterious alien companion.

    Director:Ralph Senensky
    Writer:Gene L. Coon

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  17. Star Trek Season 2 Episode 13 - Obsession
    7.2/10(3901 votes)

    S2:E13

    Captain James T. Kirk becomes obsessed with destroying a deadly entity he once encountered in his youth.

    Director:Ralph Senensky
    Writer:Art Wallace

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  18. Star Trek Season 2 Episode 14 - Wolf in the Fold
    7.2/10(4059 votes)

    S2:E14

    A series of bizarre murders points to Mr. Scott as the prime suspect.

    Director:Joseph Pevney
    Writer:Robert Bloch

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  19. Star Trek Season 2 Episode 2 - Who Mourns for Adonais?
    7.1/10(4731 votes)

    S2:E2

    The crew of the Enterprise are held captive by an alien who turns out to be the Greek god Apollo.

    Director:Marc Daniels
    Writers:Gene L. Coon, Gilbert Ralston

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  20. Star Trek Season 2 Episode 25 - Bread and Circuses
    7.1/10(3885 votes)

    S2:E25

    The Enterprise crew investigates the disappearance of a ship's crew on a planet that is a modern version of the Roman Empire.

    Director:Ralph Senensky
    Writers:Gene Roddenberry, Gene L. Coon, John Kneubuhl

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  21. Star Trek Season 2 Episode 16 - The Gamesters of Triskelion
    7.0/10(4152 votes)

    S2:E16

    Captain Kirk and his companions are abducted into slavery and trained to fight as gladiators for the gambling entertainment of three disembodied beings.

    Director:Gene Nelson
    Writer:Margaret Armen

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  22. Star Trek Season 2 Episode 11 - Friday's Child
    6.7/10(4026 votes)

    S2:E11

    The crew of the Enterprise become entangled in a planet's tribal power struggle.

    Director:Joseph Pevney
    Writer:D.C. Fontana

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  23. Star Trek Season 2 Episode 19 - A Private Little War
    6.7/10(3883 votes)

    S2:E19

    The crew of the Enterprise discovers Klingon interference in the development of a formerly peaceful planet and is forced to help maintain a balance of power.

    Director:Marc Daniels
    Writers:Gene Roddenberry, Don Ingalls

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  24. Star Trek Season 2 Episode 5 - The Apple
    6.4/10(4176 votes)

    S2:E5

    The crew of the Enterprise visits a mysterious paradisical planet controlled by a computer that is served by the local inhabitants.

    Director:Joseph Pevney
    Writers:Gene L. Coon, Max Simon Ehrlich

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  25. Star Trek Season 2 Episode 7 - Catspaw
    6.2/10(4285 votes)

    S2:E7

    Two powerful aliens threaten the well-being of the Enterprise and her crew.

    Director:Joseph Pevney
    Writers:D.C. Fontana, Robert Bloch

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Season 2 Ratings Summary

"Mirror, Mirror" is the best rated episode of Star Trek season 2. It scored 9.0/10 from 5,996 votes. Directed by Marc Daniels and written by Jerome Bixby, it aired on October 6, 1967. This episode is rated 0.3 points higher than the second-best, "The Doomsday Machine".