Episode Title: "THE SAVAGE CURTAIN"
Production Number: 77
Original Air Date: 03-07-69
Stardates: 5906.4, 5906.5
The U.S.S. Enterprise is scanning planet Excalbia, which has a molten surface and toxic atmosphere, but there are unexplained life signs detected. As the Enterprise prepares to leave, Captain Kirk is contacted by a duplicate of Abraham Lincoln, who invites Kirk and Commander Spock to an area of Earth-like environment on the planet. There they meet Surak, the founder of Vulcan civilization.
The Excalbians are creatures of living rock, and in order to observe the concept of good and evil, they have created a game of survival that pits Kirk, Spock, Lincoln, and Surak against four infamous villains from history: Ghengis Khan of ancient Earth; Colonel Green, who led a genocidal war on Earth in the Twenty-first Century; Zora, who experimented on subject tribes on Tiburon; and Kahless the Unforgettable, the Klingon who set the pattern for his planet's tyrannies.
If Kirk and Spock can fight off the enemies, the Excalbians will allow them and the Enterprise to leave.
Factoid: Lt. Commander Scott uses the expression "Loony as an Arcturian dog bird."
Guest Characters: *[Kahless], *[Surak], *[President Abraham Lincoln], *[Ghengis Khan], *[Colonel Green], *[Zora]
Alien Races: *Excalbian, [Klingon], [Vulcan]
KEY: [brackets]=illusions *star=first appearance