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Star Trek

Season 1 1966 - 1967

  • 1966-09-09T00:30:00Z on NBC
  • 60 mins
  • 1 day, 9 mins
  • United States
  • English
  • Science Fiction, Fantasy, Drama, Action, Adventure

The first season of the original Star Trek aired Thursdays at 8:30-9:30 pm on NBC from September 8, 1966 to April 13, 1967.


29 episodes

1x01 The Man Trap

  • Series Premiere

    1966-09-09T00:30:00Z — 50 mins

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.

1x02 Charlie X

  • 1966-09-16T00:30:00Z — 50 mins

Stardate 1533.6: The Enterprise picks up Charlie Evans, a young man who is the sole survivor of a transport crash. Little do they know he possesses extraordinary mental powers which will come to pose a threat to the ship and its crew.

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

1x04 The Naked Time

  • 1966-09-30T00:30:00Z — 50 mins

A strange alien substance causes the crew to act out their deepest inhibitions, while the ship plummets out of orbit.

1x05 The Enemy Within

  • 1966-10-07T00:30:00Z — 50 mins

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.

1x06 Mudd's Women

  • 1966-10-14T00:30:00Z — 50 mins

The Enterprise picks up a intergalactic conman, Harry Mudd, and three incredibly beautiful women who harbor a dark secret.

Nurse Christine Chapel is reunited with her old fiance on Exo III, but the scientist has plans for Captain Kirk and the Federation.

1x08 Miri

  • 1966-10-28T00:30:00Z — 50 mins

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.

1x09 Dagger of the Mind

  • 1966-11-04T01:30:00Z — 50 mins

Kirk investigates an experimental facility for holding prisoners and finds a sinister scheme.

1x10 The Corbomite Maneuver

  • 1966-11-11T01:30:00Z — 50 mins

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

1x11 The Menagerie (1)

  • 1966-11-18T01:30:00Z — 49 mins

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.

1x12 The Menagerie (2)

  • 1966-11-25T01:30:00Z — 50 mins

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.

1x13 The Conscience of the King

  • 1966-12-09T01:30:00Z — 50 mins

Kirk is one of the last survivors who can identify a mass killer, who lurks among a Shakespearean troupe aboard the Enterprise.

1x14 Balance of Terror

  • 1966-12-16T01:30:00Z — 50 mins

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

1x15 Shore Leave

  • 1966-12-30T01:30:00Z — 50 mins

The Enterprise crew take shore leave on a peaceful, pastoral planet...where their dreams and fantasies come to life.

1x16 The Galileo Seven

  • 1967-01-06T01:30:00Z — 50 mins

Spock commands a stranded away team when their shuttlecraft is stranded on a planet with hostile natives.

1x17 The Squire of Gothos

  • 1967-01-13T01:30:00Z — 50 mins

The Enterprise finds itself at the mercy of a seemingly omnipotent being who fancies himself a 18th century Englishman.

1x18 Arena

  • 1967-01-20T01:30:00Z — 50 mins

When a mysterious alien race destroy an Earth colony, the Enterprise pursues but Kirk and the alien captain are forced to fight each other by powerful aliens.

1x19 Tomorrow is Yesterday

  • 1967-01-27T01:30:00Z — 50 mins

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.

1x20 Court Martial

  • 1967-02-03T01:30:00Z — 50 mins

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

1x21 The Return of the Archons

  • 1967-02-10T01:30:00Z — 50 mins

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

1x22 Space Seed

  • 1967-02-17T01:30:00Z — 50 mins

The Enterprise picks up a crew of genetic supermen from the 20th century...and their leader, Khan, plans to create a new empire.

1x23 A Taste of Armageddon

  • 1967-02-24T01:30:00Z — 50 mins

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.

1x24 This Side of Paradise

  • 1967-03-03T01:30:00Z — 50 mins

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

1x25 The Devil in the Dark

  • 1967-03-10T01:30:00Z — 50 mins

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

1x26 Errand of Mercy

  • 1967-03-24T01:30:00Z — 50 mins

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.

1x27 The Alternative Factor

  • 1967-03-31T01:30:00Z — 50 mins

Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.

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

1x29 Operation -- Annihilate!

  • 1967-04-14T01:30:00Z — 50 mins

Kirk and the Enterprise must combat parasitic aliens.