S2 E1: Amok Time

S2 E2: Who Mourns for Adonais?

S2 E3: The Changeling

S2 E4: Mirror, Mirror

S2 E5: The Apple

S2 E6: The Doomsday Machine

S2 E7: Catspaw

S2 E8: I, Mudd

S2 E9: Metamorphosis

S2 E10: Journey to Babel

S2 E11: Friday's Child

S2 E12: The Deadly Years

S2 E13: Obsession

S2 E14: Wolf in the Fold

S2 E15: The Trouble With Tribbles

S2 E16: The Gamesters of Triskelion

S2 E17: A Piece of the Action

S2 E18: The Immunity Syndrome

S2 E19: A Private Little War

S2 E20: Return to Tomorrow

S2 E21: Patterns of Force

S2 E22: By Any Other Name

S2 E23: The Omega Glory

S2 E24: The Ultimate Computer

S2 E25: Bread and Circuses

S2 E26: Assignment: Earth