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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 8.7/10

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
    8.7/10(7537 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.

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

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  2. Star Trek Season 2 Episode 4 - Mirror, Mirror
    8.5/10(5870 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
    Writer:Jerome Bixby

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  3. Star Trek Season 2 Episode 15 - The Trouble With Tribbles
    8.5/10(5646 votes)

    #3 - 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.

    Director:Joseph Pevney
    Writer:David Gerrold

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  4. Star Trek Season 1 Episode 14 - Balance of Terror
    8.4/10(6557 votes)

    #4 - 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.

    Director:Vincent McEveety
    Writer:Paul Schneider

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  5. Star Trek Season 1 Episode 22 - Space Seed
    8.4/10(6241 votes)

    #5 - 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.

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

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  6. Star Trek Season 2 Episode 1 - Amok Time
    8.4/10(5462 votes)

    #6 - Amok Time

    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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    The 20 WORST Episodes of Star Trek

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  7. Star Trek Season 2 Episode 6 - The Doomsday Machine
    8.2/10(5272 votes)

    #7 - 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.

    Director:Marc Daniels
    Writer:Norman Spinrad

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  8. Star Trek Season 1 Episode 26 - Errand of Mercy
    8.1/10(4692 votes)

    #8 - 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
    Writer:Gene L. Coon

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  9. Star Trek Season 2 Episode 10 - Journey to Babel
    8.1/10(4663 votes)

    #9 - Journey to Babel

    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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  10. Star Trek Season 1 Episode 25 - The Devil in the Dark
    8.0/10(5072 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.

    Director:Joseph Pevney
    Writer:Gene L. Coon

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  11. Star Trek Season 2 Episode 24 - The Ultimate Computer
    8.0/10(4002 votes)

    #11 - 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.

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

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  12. Star Trek Season 1 Episode 11 - The Menagerie (1)
    7.9/10(5653 votes)

    #12 - 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.

    Directors:Marc Daniels, Robert Butler
    Writer:Gene Roddenberry

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  13. Star Trek Season 1 Episode 23 - A Taste of Armageddon
    7.9/10(4851 votes)

    #13 - 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.

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

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  14. Star Trek Season 3 Episode 2 - The Enterprise Incident
    7.9/10(4499 votes)

    #14 - The Enterprise Incident

    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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  15. Star Trek Season 3 Episode 23 - All Our Yesterdays
    7.9/10(4007 votes)

    #15 - 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.

    Director:Marvin J. Chomsky
    Writer:Jean Lisette Aroeste

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  16. Star Trek Season 1 Episode 12 - The Menagerie (2)
    7.8/10(5400 votes)

    #16 - 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.

    Directors:Marc Daniels, Robert Butler
    Writer:Gene Roddenberry

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  17. Star Trek Season 2 Episode 21 - Patterns of Force
    7.7/10(4008 votes)

    #17 - Patterns of Force

    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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  18. Star Trek Season 1 Episode 10 - The Corbomite Maneuver
    7.6/10(5716 votes)

    #18 - 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.

    Director:Joseph Sargent
    Writer:Jerry Sohl

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  19. Star Trek Season 1 Episode 24 - This Side of Paradise
    7.6/10(4686 votes)

    #19 - 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.

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

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  20. Star Trek Season 2 Episode 3 - The Changeling
    7.6/10(4238 votes)

    #20 - The Changeling

    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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  21. Star Trek Season 2 Episode 22 - By Any Other Name
    7.6/10(3902 votes)

    #21 - By Any Other Name

    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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  22. Star Trek Season 1 Episode 19 - Tomorrow Is Yesterday
    7.5/10(5000 votes)

    #22 - 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.

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

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  23. Star Trek Season 2 Episode 17 - A Piece of the Action
    7.5/10(4416 votes)

    #23 - A Piece of the Action

    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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  24. Star Trek Season 2 Episode 18 - The Immunity Syndrome
    7.5/10(3783 votes)

    #24 - The Immunity Syndrome

    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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  25. Star Trek Season 2 Episode 20 - Return to Tomorrow
    7.5/10(3835 votes)

    #25 - Return to Tomorrow

    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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Best Episodes Summary

"The City on the Edge of Forever" is the best rated episode of "Star Trek". It scored 8.7/10 based on 7537 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".