Star Trek

10 Best Episodes of Star Trek

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 planet Vulcan. With a determined crew, the Enterprise encounters Klingons, Romulans, time paradoxes, tribbles and genetic supermen led by Khan Noonian Singh. Their mission is to explore strange new worlds, to seek new life and new civilizations, and to boldly go where no man has gone before.

Warning: the following content contains spoilers!

This page was generated using automation technology and thoroughly edited and fact-checked by an editor on our editorial staff.

Star Trek - S2E15

#1 - The Trouble with Tribbles (Season 2 - Episode 15)

Kirk must defuse a Klingon scheme to destroy a grain shipment... and cope with a seemingly benign creature known as a tribble, which reproduces at amazing speed.

The episode was rated 8.22 from 388 votes.

Star Trek - S3E2

#2 - The Enterprise Incident (Season 3 - Episode 2)


An unusually tense and irritable Kirk orders his ship into the Romulan Neutral Zone, where it is promptly surrounded. Beamed to a Romulan ship, Kirk lies about the intrusion, then attacks Spock, who responds with a Vulcan death grip. While the female Romulan commander courts Spock, a secret mission unfolds.

The episode was rated 8.15 from 334 votes.

Star Trek - S1E28

#3 - The City on the Edge of Forever (Season 1 - Episode 28)

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

The episode was rated 8.15 from 426 votes.

Star Trek - S2E1

#4 - Amok Time (Season 2 - Episode 1)


Spock must go to Vulcan in order to perform the Vulcan mating ritual.

The episode was rated 8.12 from 447 votes.

Star Trek - S2E6

#5 - The Doomsday Machine (Season 2 - Episode 6)

The Enterprise must stop an ancient doomsday weapon that is capable of destroying entire worlds... and has already totalled one Constellation-class cruiser.

The episode was rated 8.10 from 407 votes.

Star Trek - S1E14

#6 - Balance of Terror (Season 1 - Episode 14)


Kirk pits the Enterprise against an invisible spaceship testing the Federation's defenses.

The episode was rated 8.05 from 440 votes.

Star Trek - S2E10

#7 - Journey to Babel (Season 2 - Episode 10)

Spock meets his estranged father when the Enterprise escorts a group of ambassadors to a conference on the planet Babel.

The episode was rated 8.05 from 352 votes.

Star Trek - S2E4

#8 - Mirror, Mirror (Season 2 - Episode 4)


Kirk and three of his officers are accidentally transported into a parallel "mirror" universe where violence, greed, and evil are commonplace.

The episode was rated 8.02 from 442 votes.

Star Trek - S1E23

#9 - A Taste of Armageddon (Season 1 - Episode 23)

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.

The episode was rated 7.93 from 362 votes.

Star Trek - S2E24

#10 - The Ultimate Computer (Season 2 - Episode 24)


The Enterprise is used to test a new super-sophisticated computer, but it soon develops a mind of its own.

The episode was rated 7.92 from 313 votes.

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    Star Trek - S1E22

    #11 - Space Seed (Season 1 - Episode 22)

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

    The episode was rated 7.92 from 442 votes.

    Star Trek - S3E9

    #12 - The Tholian Web (Season 3 - Episode 9)


    Captain Kirk finds himself trapped between dimensions on a disintegrating starship. The Enterprise crew works against time to rescue him as the Tholians weave a destructive energy web around their ship.

    The episode was rated 7.82 from 292 votes.

    Star Trek - S1E11

    #13 - The Menagerie (1) (Season 1 - Episode 11)

    Spock kidnaps his former captain, the crippled Christopher Pike, and heads for a quarantined planet, putting his career and Kirk's life on the line.

    The episode was rated 7.78 from 458 votes.

    Star Trek - S1E20

    #14 - Court Martial (Season 1 - Episode 20)


    Captain Kirk's career is at stake when he is put on trial for the loss of a crewman during an ion storm.

    The episode was rated 7.74 from 369 votes.

    Star Trek - S1E12

    #15 - The Menagerie (2) (Season 1 - Episode 12)

    Spock's court-martial continues as he attempts to justify his abduction of Pike, the theft of the Enterprise, and his heading for a planet declared forbidden by Starfleet.

    The episode was rated 7.74 from 446 votes.

    Star Trek - S1E19

    #16 - Tomorrow is Yesterday (Season 1 - Episode 19)


    The Enterprise collides with a black hole and is thrown back to Earth in the 20th century, where they must find a way back and erase any trace of their presence. Matters become complicated when they rescue an Air Force pilot and cannot return him without changing history... but if he disappears that will change history as well.

    The episode was rated 7.72 from 415 votes.

    Star Trek - S2E20

    #17 - Return to Tomorrow (Season 2 - Episode 20)

    The Enterprise discovers three discorporeal intelligences who seek their help in gaining physical bodies... but one of them has plans of his own.

    The episode was rated 7.65 from 274 votes.

    Star Trek - S2E22

    #18 - By Any Other Name (Season 2 - Episode 22)


    The Enterprise's command crew must thwart an invasion by aliens from another galaxy who plan to conquer this one.

    The episode was rated 7.62 from 289 votes.

    Star Trek - S1E25

    #19 - The Devil in the Dark (Season 1 - Episode 25)

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

    The episode was rated 7.59 from 354 votes.

    Star Trek - S3E11

    #20 - Wink of an Eye (Season 3 - Episode 11)


    Invisible to humans due to their time-accelerated state, a group of aliens invade the Enterprise and attempt to abduct members of the crew to serve as breeding stock for their dying planet.

    The episode was rated 7.58 from 265 votes.


    Last updated: feb 02, 2023

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