Star Trek: The Original Series (1966–1969)
27 Nov. 1988The Cage
Capt. Pike is held prisoner and tested by aliens who have the power to project incredibly lifelike illusions.
8 Sep. 1966The Man Trap
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.
15 Sep. 1966Charlie X
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.
22 Sep. 1966Where No Man Has Gone Before
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!
29 Sep. 1966The Naked Time
The crew is infected with a mysterious disease that removes people's emotional inhibitions to a dangerous degree.
6 Oct. 1966The Enemy Within
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.
13 Oct. 1966Mudd's Women
The Enterprise picks up untrustworthy entrepreneur Harry Mudd accompanied by three beautiful women who immediately put a spell on all the male crew members.
20 Oct. 1966What Are Little Girls Made Of?
Nurse Chapel is reunited with her fiancé; but his new obsession leads him to make an android duplicate of Captain Kirk.
27 Oct. 1966Miri
The Enterprise discovers a planet exactly like Earth, but the only inhabitants are children who contract a fatal disease upon entering puberty.
3 Nov. 1966Dagger of the Mind
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.
10 Nov. 1966The Corbomite Maneuver
After the Enterprise is forced to destroy a dangerous marker buoy, a gigantic alien ship arrives to capture and condemn the crew as trespassers.
17 Nov. 1966The Menagerie: Part I
Spock kidnaps the crippled Capt. Pike, hijacks the Enterprise and then surrenders for court martial.
24 Nov. 1966The Menagerie: Part II
At Spock's court martial, he explains himself with mysterious footage about when Capt. Pike was kidnapped by powerful illusion casting aliens.
8 Dec. 1966The Conscience of the King
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.
15 Dec. 1966Balance of Terror
The Enterprise must decide on its response when a Romulan ship makes a destructively hostile armed probe of Federation territory.
29 Dec. 1966Shore Leave
The past three months have 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?
5 Jan. 1967The Galileo Seven
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.
12 Jan. 1967The Squire of Gothos
A being that controls matter and creates planets wants to play with the Enterprise crew.
19 Jan. 1967Arena
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.
9 Feb. 1967The Return of the Archons
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.
16 Feb. 1967Space Seed
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.
23 Feb. 1967A Taste of Armageddon
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.
2 Mar. 1967This Side of Paradise
The Enterprise investigates a planet whose colonists should be dead, but are not.
9 Mar. 1967The Devil in the Dark
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.
23 Mar. 1967Errand of Mercy
With a war with Klingons raging, Kirk and Spock attempt to resist an occupation of a planet with incomprehensibly placid natives.
30 Mar. 1967The Alternative Factor
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.
6 Apr. 1967The City on the Edge of Forever
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.
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