Season 2

E1. Amok Time

Sep 15, 1967 · 50m

First Officer Spock returns to his home world for a brutal Vulcan mating ritual.

E2. Who Mourns for Adonais?

Sep 22, 1967 · 51m

The crew of the Enterprise are held captive by an alien who turns out to be the Greek god Apollo.

E3. The Changeling

Sep 29, 1967 · 50m

The crew of the USS Enterprise deals with an indestructible planet-destroying space probe.

E4. Mirror, Mirror

Oct 6, 1967 · 50m

A transporter mishap swaps Captain Kirk and his companions with their evil counterparts in a parallel universe. In the so-called Mirror Universe, the Enterprise is a ship of the Terran Empire, an organization as evil as the United Federation of Planets is benevolent.

E5. The Apple

Oct 13, 1967 · 50m

The crew of the Enterprise visits a mysterious paradisical planet controlled by a computer that is served by the local inhabitants.

E6. The Doomsday Machine

Oct 20, 1967 · 51m

The starship Enterprise and its heavily-damaged sister ship, the USS Constellation, must work together to stop an alien planet-killing machine headed for the heart of Federation territory.

E7. Catspaw

Oct 27, 1967 · 50m

Two powerful aliens threaten the well-being of the Enterprise and her crew.

E8. I, Mudd

Nov 3, 1967 · 51m

Captain Kirk has a second run-in with the conman, Harry Mudd. Mudd is now the supreme ruler of a planet of androids who cater to his every whim.

E9. Metamorphosis

Nov 10, 1967 · 50m

A shuttle crew from the USS Enterprise encounters a man out of history and his mysterious alien companion.

E10. Journey to Babel

Nov 17, 1967 · 50m

The Enterprise must transport dignitaries to a peace conference, with an assassin on the loose.

E11. Friday's Child

Dec 1, 1967 · 50m

The crew of the Enterprise become entangled in a planet's tribal power struggle.

E12. The Deadly Years

Dec 8, 1967 · 50m

Strange radiation exposes the command crew of the Enterprise to the effects of rapid aging.

E13. Obsession

Dec 15, 1967 · 50m

Captain James T. Kirk becomes obsessed with destroying a deadly entity he once encountered in his youth.

E14. Wolf in the Fold

Dec 22, 1967 · 51m

A series of bizarre murders points to Mr. Scott as the prime suspect.

E15. The Trouble With Tribbles

Dec 29, 1967 · 50m

The Enterprise must protect a very important shipment of grain from both Klingons and some adorable creatures called tribbles.

E16. The Gamesters of Triskelion

Jan 5, 1968 · 50m

Captain Kirk and his companions are abducted into slavery and trained to fight as gladiators for the gambling entertainment of three disembodied beings.

E17. A Piece of the Action

Jan 12, 1968 · 50m

The Enterprise visits a planet with an Earth-like 1920s gangster culture.

E18. The Immunity Syndrome

Jan 19, 1968 · 50m

The crew of the Enterprise encounters an energy-draining field which may be able to destroy the galaxy.

E19. A Private Little War

Feb 2, 1968 · 51m

The crew of the Enterprise discovers Klingon interference in the development of a formerly peaceful planet and is forced to help maintain a balance of power.

E20. Return to Tomorrow

Feb 9, 1968 · 50m

Ancient alien minds are given control of Captain Kirk's and First Officer Spock's bodies.

E21. Patterns of Force

Feb 16, 1968 · 50m

The crew of the Enterprise tracks down a Federation observer on a planet dominated by a "Naziesque" regime.

E22. By Any Other Name

Feb 23, 1968 · 50m

Beings from another galaxy commandeer the Enterprise in an attempt to return home.

E23. The Omega Glory

Mar 1, 1968 · 50m

Captain Kirk must find the cure to a deadly disease and put an end to another Starfleet captain's cultural interference.

E24. The Ultimate Computer

Mar 8, 1968 · 50m

A skeleton Enterprise crew are assigned to test a revolutionary computer system that is given total control of the ship.

E25. Bread and Circuses

Mar 15, 1968 · 50m

The Enterprise crew investigates the disappearance of a ship's crew on a planet that is a modern version of the Roman Empire.

E26. Assignment: Earth

Mar 29, 1968 · 50m

While back in time observing Earth in 1968, the Enterprise crew encounters the mysterious Gary Seven who has his own agenda on the planet.