The BEST episodes of Star Trek

Every episode of Star Trek ever, ranked from best to worst by thousands of votes from fans of the show. The 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, who is assisted by First Officer Mr. Spock, from the planet Vulcan, and Chief Medical Officer Dr. Leonard 'Bones' McCoy. With a determined crew, the Enterprise encounters Klingons, Romulans, time paradoxes, tribbles and genetic supermen led by Khan Noonien Singh. Their mission: to explore strange new worlds, to seek new life and new civilizations, to boldly go where no man has gone before.

Last Updated: 1/6/2024Network: NBCStatus: Ended
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The City on the Edge of Forever
star
8.03
1248 votes

#1 - The City on the Edge of Forever

Season 1 - Episode 28 - Aired 4/6/1967

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

Directors: Joseph Pevney
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Balance of Terror
star
8.01
1147 votes

#2 - Balance of Terror

Season 1 - Episode 14 - Aired 12/15/1966

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

Directors: Vincent McEveety
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The Trouble with Tribbles
star
7.91
1023 votes

#3 - The Trouble with Tribbles

Season 2 - Episode 15 - Aired 12/29/1967

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.

Directors: Joseph Pevney
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Amok Time
star
7.86
1187 votes

#4 - Amok Time

Season 2 - Episode 1 - Aired 9/15/1967

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

Directors: Joseph Pevney
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Mirror, Mirror
star
7.80
1182 votes

#5 - Mirror, Mirror

Season 2 - Episode 4 - Aired 10/6/1967

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

Directors: Marc Daniels
Writer: Jerome Bixby
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Space Seed
star
7.80
1133 votes

#6 - Space Seed

Season 1 - Episode 22 - Aired 2/16/1967

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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Journey to Babel
star
7.73
864 votes

#7 - Journey to Babel

Season 2 - Episode 10 - Aired 11/17/1967

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

Directors: Joseph Pevney
Writer: D.C. Fontana
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A Taste of Armageddon
star
7.70
1056 votes

#8 - A Taste of Armageddon

Season 1 - Episode 23 - Aired 2/23/1967

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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The Ultimate Computer
star
7.67
952 votes

#9 - The Ultimate Computer

Season 2 - Episode 24 - Aired 3/8/1968

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

Writer: D.C. Fontana
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The Doomsday Machine
star
7.65
1213 votes

#10 - The Doomsday Machine

Season 2 - Episode 6 - Aired 10/20/1967

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

Directors: Marc Daniels
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The Enterprise Incident
star
7.64
1112 votes

#11 - The Enterprise Incident

Season 3 - Episode 2 - Aired 9/27/1968

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.

Writer: D.C. Fontana
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The Menagerie (1)
star
7.61
1155 votes

#12 - The Menagerie (1)

Season 1 - Episode 11 - Aired 11/17/1966

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.

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Tomorrow is Yesterday
star
7.60
1049 votes

#13 - Tomorrow is Yesterday

Season 1 - Episode 19 - Aired 1/26/1967

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.

Writer: D.C. Fontana
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The Menagerie (2)
star
7.59
1255 votes

#14 - The Menagerie (2)

Season 1 - Episode 12 - Aired 11/24/1966

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.

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Court Martial
star
7.52
1030 votes

#15 - Court Martial

Season 1 - Episode 20 - Aired 2/2/1967

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

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The Devil in the Dark
star
7.51
976 votes

#16 - The Devil in the Dark

Season 1 - Episode 25 - Aired 3/9/1967

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

Directors: Joseph Pevney
Writer: Gene L. Coon
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Errand of Mercy
star
7.49
982 votes

#17 - Errand of Mercy

Season 1 - Episode 26 - Aired 3/23/1967

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.

Directors: John Newland
Writer: Gene L. Coon
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The Tholian Web
star
7.47
865 votes

#18 - The Tholian Web

Season 3 - Episode 9 - Aired 11/15/1968

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.

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This Side of Paradise
star
7.46
971 votes

#19 - This Side of Paradise

Season 1 - Episode 24 - Aired 3/2/1967

The Enterprise crew is trapped in paradise when they come to rescue colonists who have fallen to pacifying alien spores and become infected themselves.

Writer: D.C. Fontana
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The Changeling
star
7.42
1187 votes

#20 - The Changeling

Season 2 - Episode 3 - Aired 9/29/1967

The Enterprise encounters an ancient Earth probe bent on the sterilization of all life.

Directors: Marc Daniels
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The Corbomite Maneuver
star
7.40
1284 votes

#21 - The Corbomite Maneuver

Season 1 - Episode 10 - Aired 11/10/1966

The Enterprise encounters a vast alien ship that sets out to test them.

Directors: Joseph Sargent
Writer: Jerry Sohl
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All Our Yesterdays
star
7.39
837 votes

#22 - All Our Yesterdays

Season 3 - Episode 23 - Aired 3/14/1969

Kirk, Spock, and McCoy become trapped in the past of another world.

Directors: Marvin Chomsky
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The Return of the Archons
star
7.37
978 votes

#23 - The Return of the Archons

Season 1 - Episode 21 - Aired 2/9/1967

The Enterprise encounters a seemingly peaceful civilization run by a "benevolent" being named Landru... who intends for them to join his people.

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Where No Man Has Gone Before
star
7.37
1883 votes

#24 - Where No Man Has Gone Before

Season 1 - Episode 3 - Aired 9/22/1966

While exploring the edge of the galaxy, the Enterprise encounters an energy barrier that gives two crewmen godlike powers.

Directors: James Goldstone
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I, Mudd
star
7.32
888 votes

#25 - I, Mudd

Season 2 - Episode 8 - Aired 11/3/1967

The Enterprise is taken over by a group of androids who are working for Kirk's old nemesis, Harry Mudd.

Directors: Marc Daniels
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