Overview
Two powerful aliens threaten the well-being of the Enterprise and her crew.
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2 - 1Amok Time September 15, 1967 -
2 - 2Who Mourns for Adonais? September 22, 1967 -
2 - 3The Changeling September 29, 1967 -
2 - 4Mirror, Mirror October 06, 1967 -
2 - 5The Apple October 13, 1967 -
2 - 6The Doomsday Machine October 20, 1967 -
2 - 7Catspaw October 27, 1967 -
2 - 8I, Mudd November 03, 1967 -
2 - 9Metamorphosis November 10, 1967 -
2 - 10Journey to Babel November 17, 1967 -
2 - 11Friday's Child December 01, 1967 -
2 - 12The Deadly Years December 08, 1967 -
2 - 13Obsession December 15, 1967 -
2 - 14Wolf in the Fold December 22, 1967 -
2 - 15The Trouble With Tribbles December 29, 1967 -
2 - 16The Gamesters of Triskelion January 05, 1968 -
2 - 17A Piece of the Action January 12, 1968 -
2 - 18The Immunity Syndrome January 19, 1968 -
2 - 19A Private Little War February 02, 1968 -
2 - 20Return to Tomorrow February 09, 1968 -
2 - 21Patterns of Force February 16, 1968 -
2 - 22By Any Other Name February 23, 1968 -
2 - 23The Omega Glory March 01, 1968 -
2 - 24The Ultimate Computer March 08, 1968 -
2 - 25Bread and Circuses March 15, 1968 -
2 - 26Assignment: Earth March 29, 1968