Season 1
Episode Guide
The Cage
S1
E1
Captain Pike and his crew are lured to Talos IV by a race capable of creating powerful illusions.
The Man Trap
S1
E2
Kirk and his crew are at deadly risk from an alien creature that feeds on the salt in a human body and can take on any form.
Charlie "X"
S1
E3
A powerful teenage boy wreaks havoc aboard the U.S.S. Enterprise.
Where No Man Has Gone Before
S1
E4
Kirk's friend, Gary Mitchell, is transformed into a God-like entity.
The Naked Time
S1
E5
A strange alien substance causes the crew to act out their deepest inhibitions, while the ship plummets out of orbit.
The Enemy Within
S1
E6
A transporter malfunction causes Captain Kirk to split into his "good" and "evil" selves, and a landing party will freeze to death if the crew is unable to find a way to merge the two Kirks back together.
Mudd's Women
S1
E7
The Enterprise picks up a intergalactic conman, Harry Mudd, and three incredibly beautiful women who harbor a dark secret.
What Are Little Girls Made Of
S1
E8
Nurse Christine Chapel is reunited with her old fiance on Exo III, but the scientist has plans for Captain Kirk and the Federation.
Miri
S1
E9
A strange group of children are discovered on an Earth-like planet.
Dagger Of The Mind
S1
E10
Kirk investigates an experimental facility for holding prisoners and finds a sinister scheme.
The Corbomite Maneuver
S1
E11
Kirk bluffs his way past what appears to be a powerful alien.
The Menagerie, Part 1
S1
E12
Spock hijacks the Enterprise to return an injured Captain Pike to Talos IV.
The Menagerie, Part 2
S1
E13
Spock hijacks the Enterprise to return an injured Captain Pike to Talos IV.
The Conscience Of The King
S1
E14
Kirk is one of the last survivors who can identify a mass killer, who lurks among a Shakespearean troupe aboard the Enterprise.
Balance Of Terror
S1
E15
After attacking an outpost, Romulans battle the Enterprise.
Shore Leave
S1
E16
On shore leave, the crew's thoughts come to life.
The Galileo Seven
S1
E17
Spock commands a stranded away team when their shuttlecraft is stranded on a planet with hostile natives.
The Squire Of Gothos
S1
E18
A powerful entity known as Trelane torments the crew of the Enterprise.
Arena
S1
E19
Kirk is pitted in a barehanded duel with a Gorn.
Tomorrow Is Yesterday
S1
E20
The Enterprise is thrown back to 20th century earth.
Court Martial
S1
E21
Captain Kirk's career is at stake when he is put on trial for the loss of a crewman during an ion storm.
The Return Of The Archons
S1
E22
The Enterprise encounters a seemingly peaceful civilization run by a "benevolent" being named Landru...who intends for them to join his people.
Space Seed
S1
E23
Kirk meets Khan, a leader of Earth's Eugenics War.
A Taste Of Armageddon
S1
E24
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.
This Side Of Paradise
S1
E25
The Enterprise visits a colony where indigenous flower spores provide the settlers with peaceful contentment.
The Devil In The Dark
S1
E26
An unknown monster threatens a mining operation.
Errand Of Mercy
S1
E27
Kirk and Spock battle Klingons to free Organia.
The Alternative Factor
S1
E28
Kirk and Spock encounter a mysterious alien named Lazarus who claims to be hunting a ruthless maniacal creature.
The City On The Edge Of Forever
S1
E29
Kirk and Spock go back in time to save McCoy.
Operation Annihilate
S1
E30
Kirk and the Enterprise must combat parasitic aliens.