Star Trek Season 1 Episodes

  • 29 rows  Star Trek ' s first season comprised 29 episodes, including the two-part episode 'The Menagerie', which includes almost all of the footage from the original pilot, 'The Cage'.
  • Seeking the answer to a century-old mystery, Kirk and crew encounter a vacantly peaceful society under a 6000-year autocratic rule that kills all those it can't absorb.
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Season 1 guide for Star Trek: Discovery TV series - see the episodes list with schedule and episode summary. Track Star Trek: Discovery season 1 episodes.

Season 1

The Cage
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Capt. Pike is held prisoner and tested by aliens who have the power to project incredibly lifelike illusions.
The Man Trap
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Dr. McCoy discovers his old flame is not what she seems after crew members begin dying from a sudden lack of salt in their bodies.
Charlie X
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Captain Kirk must learn the limits to the power of a 17-year-old boy with the psychic ability to create anything and destroy anyone.
Where No Man Has Gone Before
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The flight recorder of the 200-year-old U.S.S. Valiant relays a tale of terror--a magnetic storm at the edge of the galaxy!
The Naked Time
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The crew is infected with a mysterious disease that removes people's emotional inhibitions to a dangerous degree.
The Enemy Within
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A transporter malfunction splits Captain Kirk into two halves: one meek and indecisive, the other violent and ill tempered. The remaining crew members stranded on the planet cannot be beamed up to the ship until a problem is fixed.
Mudd's Women
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The Enterprise picks up untrustworthy entrepreneur Harry Mudd accompanied by three beautiful women who immediately put a spell on all the male crew members.
What Are Little Girls Made Of?
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Nurse Chapel is reunited with her fiancé; but his new obsession leads him to make an android duplicate of Captain Kirk.
Miri
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The Enterprise discovers a planet exactly like Earth, but the only inhabitants are children who contract a fatal disease upon entering puberty.
Dagger of the Mind
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Kirk and psychiatrist Helen Noel are trapped on a maximum security penal colony that experiments with mind control and Spock must use the Vulcan mind-meld to find a way to save them.
The Corbomite Maneuver
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After the Enterprise is forced to destroy a dangerous marker buoy, a gigantic alien ship arrives to capture and condemn the crew as trespassers.
The Menagerie: Part I
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Spock kidnaps the crippled Capt. Pike, hijacks the Enterprise and then surrenders for court martial.
The Menagerie: Part II
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At Spock's court martial, he explains himself with mysterious footage about when Capt. Pike was kidnapped by powerful illusion casting aliens.
The Conscience of the King
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While Captain Kirk investigates whether an actor is actually a presumed dead mass murderer, a mysterious assailant is killing the people who could identify the fugitive.
Balance of Terror
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The Enterprise must decide on its response when a Romulan ship makes a destructively hostile armed probe of Federation territory.
Shore Leave
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The past three months has left the crew of the Enterprise exhausted and in desperate need of a break, but does this explain McCoy's encounter with a human-sized white rabbit or Kirk crossing paths with the prankster who plagued his days at Starfleet Academy?
The Galileo Seven
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The Galileo, under Spock's command, crash-lands on a hostile planet. As the Enterprise races against time to find the shuttlecraft, Spock's strictly logical leadership clashes with the fear and resentment of his crew.
The Squire of Gothos
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A being that controls matter and creates planets wants to play with the Enterprise crew.
Arena
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For bringing hostility into their solar system, a superior alien race brings Captain Kirk in mortal combat against the reptilian captain of an alien ship he was pursuing.
Tomorrow Is Yesterday
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The Enterprise is thrown back in time to 1960s Earth.
Court Martial
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Kirk draws a court martial in the negligent death of a crewman.
The Return of the Archons
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Best Star Trek Season 1 Episodes

Seeking the answer to a century-old mystery, Kirk and crew encounter a vacantly peaceful society under a 6000-year autocratic rule that kills all those it can't absorb.
Space Seed
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While on patrol in deep space, Captain Kirk and his crew find and revive a genetically engineered world conqueror and his compatriots from Earth's 20th century.
A Taste of Armageddon
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Kirk and Spock must save their ship's crew when they are declared all killed in action in a bizarre computer simulated war where the actual deaths must occur to continue.
This Side of Paradise
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The Enterprise investigates a planet whose colonists should be dead, but are not.
The Devil in the Dark
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The Enterprise is sent to a mining colony that is being terrorized by a mysterious monster, only to find that the situation is not that simple.
Errand of Mercy
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With a war with Klingons raging, Kirk and Spock attempt to resist an occupation of a planet with incomprehensibly placid natives.
The Alternative Factor
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Star Trek Season 1 Episode 20

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Star Trek Season 1 Episode 14

Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.
The City on the Edge of Forever
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When a temporarily insane Dr. McCoy accidentally changes history and destroys his time, Kirk and Spock follow him to prevent the disaster, but the price to do so is high.
Operation - Annihilate!
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The Enterprise crew attempts to stop a plague of amoeba-like creatures from possessing human hosts and spreading throughout the galaxy.