Witchy Woman
The Enterprise picks up a con artist who provides wives for men in the galaxy. These women have a strange effect on the crew. Episode #6: Mudd's Women. First air date: 10/13/1966.

Disease
Kirk has been infected with a disease that children are immune to. Episode #8: Miri. First air date: 10/27/1966.

Guilt by Association
Stardate 1709.2: As the crew debates attacking a Romulan warbird, the physical similarities between Romulans and Vulcans raises the ire and suspicion of Lt. Stiles. Episode #14: Balance of Terror. First air date: 12/15/1966.

Battle Royale
Stardate 3141.9: Khan and Kirk battle for control of the ship. It's a choreographed fight you don't want to miss! Episode #22: Space Seed. First air date: 2/16/1967.

Our Story
Kirk and Spock have difficulty explaining their presence to a 1930's police officer. Episode #28: The City on the Edge of Forever. First air date: 4/6/1967.