Star Trek

10 Worst 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!

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Star Trek - S3E4

#1 - And the Children Shall Lead (Season 3 - Episode 4)

The Enterprise travels to a planet where the members of a scientific team appear to have killed themselves. Their orphaned children are brought back to the ship, where they begin exhibiting odd behavior.

The episode was rated 6.22 from 254 votes.

Star Trek - S3E20

#2 - The Way to Eden (Season 3 - Episode 20)


The Enterprise picks up a group of space "hippies" looking for Eden.

The episode was rated 6.58 from 253 votes.

Star Trek - S1E27

#3 - The Alternative Factor (Season 1 - Episode 27)

Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.

The episode was rated 6.60 from 332 votes.

Star Trek - S2E19

#4 - A Private Little War (Season 2 - Episode 19)


Kirk becomes involved in an arms race when the Klingons equip a native people with superior weaponry.

The episode was rated 6.65 from 278 votes.

Star Trek - S3E13

#5 - Elaan of Troyius (Season 3 - Episode 13)

The Enterprise must escort an alien princess to her marriage to seal an interplanetary alliance... but she becomes attracted to Kirk.

The episode was rated 6.66 from 247 votes.

Star Trek - S2E23

#6 - The Omega Glory (Season 2 - Episode 23)


The Enterprise investigates the disappearance of another starship and discovers a planet where the inhabitants are immortal... and engaged in a strange parallel of Earth's Cold War period.

The episode was rated 6.69 from 298 votes.

Star Trek - S3E10

#7 - Plato's Stepchildren (Season 3 - Episode 10)

Kirk and his crew find themselves at the mercy of powerful individuals who possess mind-over-matter powers... and plan to use the Enterprise crew for their twisted entertainment.

The episode was rated 6.70 from 253 votes.

Star Trek - S3E1

#8 - Spock's Brain (Season 3 - Episode 1)


Kirk leads the Enterprise in pursuit of a mysterious alien woman after she beams aboard the bridge and steals Spock's brain.

The episode was rated 6.74 from 312 votes.

Star Trek - S3E3

#9 - The Paradise Syndrome (Season 3 - Episode 3)

Spock and the Enterprise crew race to destroy an asteroid threatening a primitive world where an amnesiac Kirk is proclaimed a god by its indigenous people.

The episode was rated 6.75 from 279 votes.

Star Trek - S2E16

#10 - The Gamesters of Triskelion (Season 2 - Episode 16)


Kirk, Chekov, and Uhura are kidnapped and forced to participate in a series of gladiatorial games.

The episode was rated 6.82 from 290 votes.

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    Last updated: feb 02, 2023

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