Season 3, Episode 23 All Our Yesterdays
Kirk, Spock and McCoy are sent through time by a machine called the Atavachron, with Kirk landing in the Middle Ages, where he's accused of witchcraft, and Spock and McCoy in the Ice Age. Zarabeth: Mariette Hartley. Mr. Atoz: Ian Wolfe. Kirk: William Shatner. Spock: Leonard Nimoy. McCoy: DeForest Kelley.
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- Rating: TV-PG
- Premise: Capt. Kirk, Mr. Spock, Dr. McCoy and the USS Enterprise crew seek out new civilizations in this seminal sci-fi series. The ship's five-year mission may have only lasted three seasons on NBC, but its impact has proved timeless. By the 1970s, its rabid fans-… (more)