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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!

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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
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    Star Trek Season 1 Episode 28 - The City on the Edge of Forever
    9.2/10(7472 votes)

    #1 - The City on the Edge of Forever

    S1:E28

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

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  2. Star Trek Season 2 Episode 4 - Mirror, Mirror
    9.0/10(5839 votes)

    #2 - Mirror, Mirror

    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

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  3. Star Trek Season 1 Episode 14 - Balance of Terror
    8.8/10(6491 votes)

    #3 - Balance of Terror

    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.

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  4. Star Trek Season 1 Episode 22 - Space Seed
    8.7/10(6170 votes)

    #4 - Space Seed

    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.

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  5. Star Trek Season 2 Episode 6 - The Doomsday Machine
    8.7/10(5171 votes)

    #5 - The Doomsday Machine

    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.

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  6. Star Trek Season 2 Episode 15 - The Trouble With Tribbles
    8.7/10(5599 votes)

    #6 - The Trouble With Tribbles

    S2:E15

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

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  8. Star Trek Season 2 Episode 1 - Amok Time
    8.6/10(5429 votes)

    #7 - Amok Time

    S2:E1

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

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  9. Star Trek Season 2 Episode 10 - Journey to Babel
    8.5/10(4614 votes)

    #8 - Journey to Babel

    S2:E10

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

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

    #9 - 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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  11. Star Trek Season 1 Episode 25 - The Devil in the Dark
    8.3/10(4940 votes)

    #10 - The Devil in the Dark

    S1:E25

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

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  12. Star Trek Season 1 Episode 11 - The Menagerie (1)
    8.2/10(5574 votes)

    #11 - The Menagerie (1)

    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.

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  13. Star Trek Season 1 Episode 12 - The Menagerie (2)
    8.1/10(5331 votes)

    #12 - The Menagerie (2)

    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.

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  14. Star Trek Season 1 Episode 26 - Errand of Mercy
    8.1/10(4650 votes)

    #13 - Errand of Mercy

    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

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

    #14 - 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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  16. Star Trek Season 1 Episode 10 - The Corbomite Maneuver
    8.0/10(5606 votes)

    #15 - The Corbomite Maneuver

    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.

    Writer:Jerry Sohl

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  17. Star Trek Season 1 Episode 23 - A Taste of Armageddon
    8.0/10(4792 votes)

    #16 - A Taste of Armageddon

    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.

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  18. Star Trek Season 2 Episode 24 - The Ultimate Computer
    8.0/10(3991 votes)

    #17 - The Ultimate Computer

    S2:E24

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

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

    #18 - 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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  20. Star Trek Season 1 Episode 18 - Arena
    7.9/10(5183 votes)

    #19 - Arena

    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.

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  21. Star Trek Season 1 Episode 19 - Tomorrow Is Yesterday
    7.9/10(4945 votes)

    #20 - Tomorrow Is Yesterday

    S1:E19

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

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  22. Star Trek Season 1 Episode 4 - The Naked Time
    7.8/10(5901 votes)

    #21 - The Naked Time

    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.

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  23. Star Trek Season 1 Episode 24 - This Side of Paradise
    7.8/10(4646 votes)

    #22 - This Side of Paradise

    S1:E24

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

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  24. Star Trek Season 1 Episode 3 - Where No Man Has Gone Before
    7.7/10(7229 votes)

    #23 - Where No Man Has Gone Before

    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.

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  25. Star Trek Season 2 Episode 17 - A Piece of the Action
    7.7/10(4380 votes)

    #24 - A Piece of the Action

    S2:E17

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

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

    #25 - 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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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 7472 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".