Episode Guides

Star Trek: The Original Series Episode Guide

Star Trek: The Original Series First Episode Opening

Star Trek: The Original Series Season 1 Episode Guide

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Season 1, Episode 1 – The Man Trap

8 September 1966 | Watch it at Amazon
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.

 

Season 1, Episode 2 – Charlie X

15 September 1966 | Watch it at Amazon
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..

 

Season 1, Episode 3 – Where No Man Has Gone Before

22 September 1966 | Watch it at Amazon
While exploring the edge of the galaxy, the Enterprise encounters an energy barrier that gives two crewmen godlike powers.

 

Season 1, Episode 4 – The Naked Time

29 September 1966 | Watch it at Amazon
A strange alien substance causes the crew to act out their deepest inhibitions, while the ship plummets out of orbit.

 

Season 1, Episode 5 – The Enemy Within

6 October 1966 | Watch it at Amazon
A transporter malfunction causes Captain Kirk to split into his “good” and “evil” selves, and a landing party will freeze to death if they don’t merge the two back together.

 

Season 1, Episode 6 – Mudd’s Women

13 October 1966 | Watch it at Amazon
The Enterprise picks up an intergalactic conman, Harry Mudd, and three incredibly beautiful women who harbour a dark secret.

 

Season 1, Episode 7 – What Are Little Girls Made Of?

20 October 1966 | Watch it at Amazon
Nurse Christine Chapel is reunited with her old fiance on Exo III, but the scientist has plans for Captain Kirk and the Federation.

 

Season 1, Episode 8 – Miri

27 October 1966 | Watch it at Amazon
Kirk and a landing party are stranded on a planet due to a disease that causes any adult to die a painful death and must deal with the local children who have survived.

 

Season 1, Episode 9 – Dagger of the Mind

3 November 1966 | Watch it at Amazon
Kirk investigates an experimental facility for holding prisoners and finds a sinister scheme.

 

Season 1, Episode 10 – The Corbomite Maneuver

10 November 1966 | Watch it at Amazon
The Enterprise encounters a vast alien ship that sets out to test them.

 

Season 1, Episode 11 – The Menagerie: Part I

17 November 1966 | Watch it at Amazon
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.

 

Season 1, Episode 12 – The Menagerie: Part II

24 November 1966 | Watch it at Amazon
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.

 

Season 1, Episode 13 – The Conscience of the King

8 December 1966 | Watch it at Amazon
Kirk is one of the last survivors who can identify a mass killer, who lurks among a Shakespearean troupe aboard the Enterprise.

 

Season 1, Episode 14 – Balance of Terror

15 December 1966 | Watch it at Amazon
Kirk pits the Enterprise against an invisible spaceship testing the Federation’s defences.

 

Season 1, Episode 15 – Shore Leave

29 December 1966 | Watch it at Amazon
The Enterprise crew take shore leave on a peaceful, pastoral planet…where their dreams and fantasies come to life.

 

Season 1, Episode 16 – The Galileo Seven

5 January 1967 | Watch it at Amazon
Spock commands a stranded away team when their shuttlecraft is stranded on a planet with hostile natives.

 

Season 1, Episode 17 – The Squire of Gothos

12 January 1967 | Watch it at Amazon
The Enterprise finds itself at the mercy of a seemingly omnipotent being who fancies himself an 18th century Englishman.

 

Season 1, Episode 18 – Arena

19 January 1967 | Watch it at Amazon
When a mysterious alien race destroys an Earth colony, the Enterprise pursues but Kirk and the alien captain are forced to fight each other by powerful aliens.

 

Season 1, Episode 19 – Tomorrow is Yesterday

26 January 1967 | Watch it at Amazon
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.

 

Season 1, Episode 20 – Court Martial

2 February 1967 | Watch it at Amazon
Captain Kirk’s career is at stake when he is put on trial for the loss of a crewman during an ion storm.

 

Season 1, Episode 21 – The Return of the Archons

9 February 1967 | Watch it at Amazon
The Enterprise encounters a seemingly peaceful civilization run by a ‘benevolent’ being named Landru…who intends for them to join his people.

 

Season 1, Episode 22 – Space Seed

16 February 1967 | Watch it at Amazon
The Enterprise picks up a crew of genetic supermen from the 20th century…and their leader, Khan, plans to create a new empire.

 

Season 1, Episode 23 – A Taste of Armageddon

23 February 1967 | Watch it at Amazon
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.

 

Season 1, Episode 24 – This Side of Paradise

2 March 1967 | Watch it at Amazon
The Enterprise crew is trapped in paradise when they come to rescue colonists who have fallen to pacifying alien spores and become infected themselves.

 

Season 1, Episode 25 – The Devil in the Dark

9 March 1967 | Watch it at Amazon
Kirk investigates a series of grisly murders on a mining planet that are the work of a seemingly hostile alien creature.

 

Season 1, Episode 26 – Errand of Mercy

23 March 1967 | Watch it at Amazon
The Federation and the Klingon Empire teeter on the brink of war as Kirk investigates a humble planet caught in the middle – Organia, inhabited by pacifists.

 

Season 1, Episode 27 – The Alternative Factor

30 March 1967 | Watch it at Amazon
Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.

 

Season 1, Episode 28 – The City on the Edge of Forever

6 April 1967 | Watch it at Amazon
Kirk and Spock must travel into the past in order to correct a change that will alter history.

 

Season 1, Episode 29 – Operation: Annihilate!

13 April 1967 | Watch it at Amazon
Kirk and the Enterprise must combat parasitic aliens.

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