- Stardate 1116.4: Harry Mudd's spacecraft operator's license is revoked.
- Leo Francis Walsh dies. His identity and Class J cargo vessel are "borrowed" shortly thereafter by Harry Mudd.
- Stardate 1312.4: After the Enterprise attempts to cross the Galactic Barrier at the edge of the galaxy, crew members Gary Mitchell and Elizabeth Dehner develop "godlike" psychic powers which threaten the safety of the crew.
- Stardate 1512.2-1514.1: The Enterprise is menaced by a gigantic alien ship whose commander condemns the crew to death. The alien ship appears all-powerful and the alien commander refuses all attempts at negotiation, forcing Kirk to employ an unorthodox strategy to save the ship.
- Stardate 1329.1-1330.1: The Enterprise pursues a vessel and rescues its occupants: interstellar con man Harry Mudd, who is arrested on outstanding charges, and three incredibly beautiful women, his cargo. After Kirk diverts to a mining planet to obtain new dilithium crystals for the Enterprise, Mudd negotiates with the three miners there, exchanging the women for his own profit. Finally, Mudd's deception is revealed as the women are, in fact, taking an illegal Venus drug. Kirk obtains the crystals he needs and takes Mudd back into custody.
- Stardate 1672.1: While beaming up from planet Alfa 117, a transporter accident splits Captain Kirk into two beings: one "good", who is weak and indecisive, and one "evil", who is overly aggressive and domineering.
- Stardate 1513.1: The Enterprise visits planet M-113 for a routine medical inspection of the husband-wife archaeological team stationed there, but the crew finds that the wife has been replaced by a deadly, shape-shifting creature.
- Stardate 1704.2-1705.0: A strange, intoxicating infection, which lowers the crew's emotional inhibitions, spreads throughout the Enterprise. As the madness spreads, the entire ship is endangered.
- Stardate 1533.6-1535.8 (22 November): While traveling aboard the Enterprise, a dangerous young man named Charlie Evans terrorizes the crew with his unusual mental powers.
- Stardate 1709.1: While investigating a series of destroyed outposts, the Enterprise discovers a lone Romulan vessel with a cloaking device and a powerful new plasma torpedo. The Enterprise pursues the Romulan bird of prey into the Romulan Neutral Zone, where it picks up images from the Romulan ship's bridge. The Romulans, having never before been seen by Humans, are revealed to visually resemble Vulcans, casting doubt from some on Mr. Spock's loyalty. After taking heavy damage, the Romulan ship self-destructs.
- Stardate 2712.4: In search of Nurse Chapel's fiancé, renowned exobiologist Roger Korby, the Enterprise visits the icy planet Exo III, where Korby has discovered an ancient machine which allows him to duplicate any living person with an android replacement. Korby plans to use the machine to spread controlled androids throughout the Federation, and replaces Captain Kirk with such a duplicate in an effort to take over the Enterprise.
- During the Science Department Christmas party aboard the U.S.S. Enterprise NCC-1701, Captan Kirk dances and shares a conversation with Dr. Helen Noel, a psychiatrist recently added to the ship's crew, though Kirk is unaware of that fact until later.
- 25 December: Christmas day.
- Stardate 2715.1-2715.2: While on a re-supply mission to a rehabilitation colony for the criminally insane, the Enterprise crew discovers that the chief doctor has been using a device which destroys the human mind. Captain Kirk and Dr. Helen Noel, down on the planet, must deal with the problem up close and personal.
Notes and References
- Roddenberry, Gene (Executive Producer). "Mudd's Women." Star Trek, Season 1, Episode 3. Directed by Harvey Hart. Story by Gene Roddenberry. Written by Stephen Kandel. Desilu Productions, 13 October 1966.
- Roddenberry, Gene (Executive Producer). "Where No Man Has Gone Before." Star Trek, Season 1, Episode 1. Directed by James Goldstone. Written by Samuel A. Peeples. Desilu Productions, 22 September 1966.
- Roddenberry, Gene (Executive Producer). "The Corbomite Maneuver." Star Trek, Season 1, Episode 2. Directed by Joseph Sargent. Written by Jerry Sohl. Desilu Productions, 10 November 1966.
- Roddenberry, Gene (Executive Producer). "The Enemy Within." Star Trek, Season 1, Episode 4. Directed by Leo Penn. Written by Richard Matheson. Desilu Productions, 6 October 1966.
- Roddenberry, Gene (Executive Producer). "The Man Trap." Star Trek, Season 1, Episode 5. Directed by Marc Daniels. Written by George Clayton Johnson. Desilu Productions, 8 September 1966.
- Roddenberry, Gene (Executive Producer). "The Naked Time." Star Trek, Season 1, Episode 6. Directed by Marc Daniels. Written by John D.F. Black. Desilu Productions, 29 September 1966.
- Roddenberry, Gene (Executive Producer). "Charlie X." Star Trek, Season 1, Episode 7. Directed by Lawrence Dobkin. Story by Gene Roddenberry. Teleplay by D.C. Fontana. Desilu Productions, 15 September 1966.
- Roddenberry, Gene (Executive Producer). "Balance of Terror." Star Trek, Season 1, Episode 8. Directed by Vincent McEveety. Written by Paul Schneider. Desilu Productions, 15 December 1966.
- Roddenberry, Gene (Executive Producer). "What Are Little Girls Made Of?." Star Trek, Season 1, Episode 9. Directed by James Goldstone. Written by Robert Bloch. Desilu Productions, 20 October 1966.
- Roddenberry, Gene (Executive Producer). "Dagger of the Mind." Star Trek, Season 1, Episode 10. Directed by Vincent McEveety. Written by S.Bar-David. Desilu Productions, 3 November 1966.