Season 2

1. Amok Time

1967-09-15 · 50m

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

2. Who Mourns for Adonais?

1967-09-22 · 51m

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

3. The Changeling

1967-09-29 · 50m

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

4. Mirror, Mirror

1967-10-06 · 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.

5. The Apple

1967-10-13 · 50m

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

6. The Doomsday Machine

1967-10-20 · 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.

7. Catspaw

1967-10-27 · 50m

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

8. I, Mudd

1967-11-03 · 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.

9. Metamorphosis

1967-11-10 · 50m

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

10. Journey to Babel

1967-11-17 · 50m

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

11. Friday's Child

1967-12-01 · 50m

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

12. The Deadly Years

1967-12-08 · 50m

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

13. Obsession

1967-12-15 · 50m

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

14. Wolf in the Fold

1967-12-22 · 51m

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

15. The Trouble With Tribbles

1967-12-29 · 50m

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

16. The Gamesters of Triskelion

1968-01-05 · 50m

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

17. A Piece of the Action

1968-01-12 · 50m

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

18. The Immunity Syndrome

1968-01-19 · 50m

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

19. A Private Little War

1968-02-02 · 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.

20. Return to Tomorrow

1968-02-09 · 50m

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

21. Patterns of Force

1968-02-16 · 50m

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

22. By Any Other Name

1968-02-23 · 50m

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

23. The Omega Glory

1968-03-01 · 50m

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

24. The Ultimate Computer

1968-03-08 · 50m

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

25. Bread and Circuses

1968-03-15 · 50m

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

26. Assignment: Earth

1968-03-29 · 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.