30. Catspaw
31. Metamorphosis
32. Friday's Child
33. Who Mourns for Adonais?
34. Amok Time
35. The Doomsday Machine
36. Wolf in the Fold
37. The Changeling 
38. The Apple 
39. Mirror, Mirror 
40. The Deadly Years
41. I, Mudd
42. The Trouble With Tribbles
43. Bread and Circuses
44. Journey to Babel
45. A Private Little War
46. The Gamesters of Triskelion
47. Obsession
48. The Immunity Syndrome
49. A Piece of the Action
50. By Any Other Name
51. Return to Tomorrow
52. Patterns of Force
53. The Ultimate Computer
54. The Omega Glory
55. Assignment: Earth