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The Best Episodes of Star Trek

Every episode of Star Trek ranked from best to worst. Let's dive into the Best Episodes of Star Trek!

Binge this in 2d 18h•Peaking at 9.2/10

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

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Episode Rankings

  1. #1 Fan Favorite
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    Star Trek Season 1 Episode 28 - The City on the Edge of Forever
    9.2/10(7721 votes)

    S1:E28

    Kirk and Spock must travel into the past in order to correct a change that will alter history.

    Director:Joseph Pevney
    Writers:D.C. Fontana, Harlan Ellison

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  2. Star Trek Season 2 Episode 4 - Mirror, Mirror
    9.0/10(5985 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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  3. Star Trek Season 1 Episode 14 - Balance of Terror
    8.8/10(6724 votes)

    S1:E14

    Despite the earlier Romulan war, the Romulans have never been seen in person. The Enterprise, in pursuit of a Romulan aggressor, makes a discovery that causes suspicion about a senior crew member.

    Director:Vincent McEveety
    Writer:Paul Schneider

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  4. Star Trek Season 1 Episode 22 - Space Seed
    8.7/10(6411 votes)

    S1:E22

    The Enterprise picks up a crew of genetic supermen from the 20th century... and their leader, Khan, plans to create a new empire.

    Director:Marc Daniels
    Writers:Gene L. Coon, Carey Wilber

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  5. Star Trek Season 2 Episode 6 - The Doomsday Machine
    8.7/10(5401 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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  6. Star Trek Season 2 Episode 15 - The Trouble With Tribbles
    8.7/10(5764 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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    The 20 WORST Episodes of Star Trek

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  7. Star Trek Season 2 Episode 1 - Amok Time
    8.6/10(5585 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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  8. Star Trek Season 2 Episode 10 - Journey to Babel
    8.5/10(4773 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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  9. Star Trek Season 3 Episode 2 - The Enterprise Incident
    8.4/10(4587 votes)

    S3:E2

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

    Director:John Meredyth Lucas
    Writer:D.C. Fontana

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  10. Star Trek Season 1 Episode 25 - The Devil in the Dark
    8.3/10(5220 votes)

    S1:E25

    Kirk investigates a series of grisly murders on a mining planet that are the work of a seemingly hostile alien creature.

    Director:Joseph Pevney
    Writer:Gene L. Coon

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  11. Star Trek Season 1 Episode 11 - The Menagerie (1)
    8.2/10(5800 votes)

    S1:E11

    Apparently summoned to Star Base 11, Kirk, Spock and McCoy visit a former Enterprise Commander, the paralyzed and horribly disfigured Christopher Pike. Uncharacteristically, Spock commandeers the Enterprise, then turns himself in for court martial.

    Directors:Robert Butler, Marc Daniels
    Writer:Gene Roddenberry

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  12. Star Trek Season 1 Episode 12 - The Menagerie (2)
    8.1/10(5533 votes)

    S1:E12

    Spock's court martial reveals the actions of Captain Pike on his previous visit to Talos IV, where the powerful Talosians tried to persuade Pike to breed with women provided for the purpose.

    Directors:Marc Daniels, Robert Butler
    Writer:Gene Roddenberry

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  13. Star Trek Season 1 Episode 26 - Errand of Mercy
    8.1/10(4820 votes)

    S1:E26

    The Federation and the Klingon Empire teeter on the brink of war as Kirk investigates Organia, a humble planet, inhabited by pacifists, that is unwittingly caught in the middle.

    Director:John Newland
    Writer:Gene L. Coon

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  14. Star Trek Season 3 Episode 23 - All Our Yesterdays
    8.1/10(4076 votes)

    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.

    Director:Marvin J. Chomsky
    Writer:Jean Lisette Aroeste

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  15. Star Trek Season 1 Episode 10 - The Corbomite Maneuver
    8.0/10(5860 votes)

    S1:E10

    Threatened by the sinister captain of a powerful alien vessel, Kirk claims that the Enterprise carries a powerful explosive which will destroy both ships. The move produces unexpected actions from the alien adversary.

    Director:Joseph Sargent
    Writer:Jerry Sohl

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  16. Star Trek Season 1 Episode 23 - A Taste of Armageddon
    8.0/10(4981 votes)

    S1:E23

    The Enterprise arrives at a planet to establish diplomatic relations and finds itself in the middle of a "peaceful" war that threatens to destroy the ship.

    Director:Joseph Pevney
    Writers:Robert Hamner, Gene L. Coon

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  17. Star Trek Season 2 Episode 24 - The Ultimate Computer
    8.0/10(4090 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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  18. Star Trek Season 3 Episode 9 - The Tholian Web
    8.0/10(4008 votes)

    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.

    Directors:Ralph Senensky, Herb Wallerstein
    Writers:Judy Burns, Chet Richards

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  19. Star Trek Season 1 Episode 18 - Arena
    7.9/10(5382 votes)

    S1:E18

    With both their ships held captive by powerful beings, Kirk and the captain of the alien vessel are placed on an asteroid to fight for their lives and the lives of their crews.

    Director:Joseph Pevney
    Writers:Gene L. Coon, Fredric Brown

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  20. Star Trek Season 1 Episode 19 - Tomorrow Is Yesterday
    7.9/10(5123 votes)

    S1:E19

    In a freak accident the Enterprise is sent back to 20th century Earth, and must find their way back without changing history.

    Director:Michael O'Herlihy
    Writer:D.C. Fontana

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  21. Star Trek Season 1 Episode 4 - The Naked Time
    7.8/10(6148 votes)

    S1:E4

    An alien virus strips the enterprise crew of their inhibitions, causing chaos as each crew member is overcome by hidden emotions. Meanwhile, the Enterprise is being pulled inexorably into a nearby planet's gravity well.

    Director:Marc Daniels
    Writer:John D. F. Black

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  22. Star Trek Season 1 Episode 24 - This Side of Paradise
    7.8/10(4803 votes)

    S1:E24

    The Enterprise crew try to rescue colonists from deadly radiation, but instead encounter strange alien spores that seem to offer paradise.

    Director:Ralph Senensky
    Writers:D.C. Fontana, Jerry Sohl

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  23. Star Trek Season 1 Episode 3 - Where No Man Has Gone Before
    7.7/10(7597 votes)

    S1:E3

    When Enterprise encounters a Force Field at the edge of the Galaxy, one of the crew members psionic abilities are accelerated to God like proportions causing him to become a powerful murderous being.

    Director:James Goldstone
    Writer:Samuel A. Peeples

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  24. Star Trek Season 2 Episode 17 - A Piece of the Action
    7.7/10(4499 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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  25. Star Trek Season 3 Episode 7 - Day of the Dove
    7.7/10(3911 votes)

    S3:E7

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

    Director:Marvin J. Chomsky
    Writer:Jerome Bixby

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Best Episodes Summary

"The City on the Edge of Forever" is the best rated episode of "Star Trek". It scored 9.2/10 based on 7721 votes. Directed by Joseph Pevney and written by D.C. Fontana, Harlan Ellison, it aired on 4/6/1967. This episode scored 0.2 points higher than the second highest rated, "Mirror, Mirror".