Star Trek · Season 2 26 Episodes

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NoFirst Air DateNameOverview
2x1Amok TimeFirst Officer Spock returns to his home world for a brutal Vulcan mating ritual.
2x2Who Mourns for Adonais?The crew of the Enterprise are held captive by an alien who turns out to be the Greek god Apollo.
2x3The ChangelingThe crew of the USS Enterprise deals with an indestructible planet-destroying space probe.
2x4Mirror, MirrorA 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.
2x5The AppleThe crew of the Enterprise visits a mysterious paradisical planet controlled by a computer that is served by the local inhabitants.
2x6The Doomsday MachineThe 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.
2x7CatspawTwo powerful aliens threaten the well-being of the Enterprise and her crew.
2x8I, MuddCaptain 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.
2x9MetamorphosisA shuttle crew from the USS Enterprise encounters a man out of history and his mysterious alien companion.
2x10Journey to BabelThe Enterprise must transport dignitaries to a peace conference, with an assassin on the loose.
2x11Friday's ChildThe crew of the Enterprise become entangled in a planet's tribal power struggle.
2x12The Deadly YearsStrange radiation exposes the command crew of the Enterprise to the effects of rapid aging.
2x13ObsessionCaptain James T. Kirk becomes obsessed with destroying a deadly entity he once encountered in his youth.
2x14Wolf in the FoldA series of bizarre murders points to Mr. Scott as the prime suspect.
2x15The Trouble With TribblesThe ship travels to Deep Space Station K7 to guard a consignment of grain bound for Sherman's Planet. On arrival, a trader named Cyrano Jones gives Lt. Uhura a tribble, with dramatic consequences. Kirk and the crew also have to deal with the arrival of Captain Koloth and his Klingon battlecruiser, but the tribbles unexpectedly reveal a plot to poison the grain.
2x16The Gamesters of TriskelionCaptain Kirk and his companions are abducted into slavery and trained to fight as gladiators for the gambling entertainment of three disembodied beings.
2x17A Piece of the ActionThe Enterprise visits a planet with an Earth-like 1920s gangster culture, with Runyonesque dialog and costumes.
2x18The Immunity SyndromeThe crew of the Enterprise encounters an energy-draining space creature.
2x19A Private Little WarThe crew of the Enterprise discovers Klingon interference in the development of a formerly peaceful planet and joins them in what becomes an arms race.
2x20Return to TomorrowTelepathic aliens take control of Captain Kirk's and First Officer Spock's bodies.
2x21Patterns of ForceThe crew of the Enterprise tracks down a Federation observer on a planet dominated by a "Naziesque" regime.
2x22By Any Other NameBeings from another galaxy commandeer the Enterprise in an attempt to return home.
2x23The Omega GloryCaptain Kirk must find the cure to a deadly disease and put an end to another Starfleet captain's cultural interference.
2x24The Ultimate ComputerA skeleton Enterprise crew are assigned to test a revolutionary computer system that is given total control of the ship.
2x25Bread and CircusesThe Enterprise crew investigates the disappearance of a ship's crew on a planet that is a modern version of the Roman Empire.
2x26Assignment: EarthWhile back in time observing Earth in 1968, the Enterprise crew encounters the mysterious Gary Seven who has his own agenda on the planet.


James T. KirkWilliam Shatner
SpockLeonard Nimoy
Leonard McCoyDeForest Kelley
Mr. ScottJames Doohan
Hikaru SuluGeorge Takei
Pavel ChekovWalter Koenig
UhuraNichelle Nichols