Star Trek: The Animated Series Star Trek: The Animated Series Star Trek: The Animated Series ("ST: TAS"), originally aired as Star Trek and as The Animated Adventures of Gene Roddenberry's Star Trek, is an American animated science fiction television series created by Gene Roddenberry. It originally aired from September 8, 1973 to October 12, 1974 on NBC, spanning 22 episodes over two seasons. The second series in the "Star Trek" franchise, it is the first sequel to "". Set in the 23rd century, when Earth is part of a United Federation of Planets, it follows the adventures of the Starfleet vessel USS "Enterprise" as it
Obsession (Star Trek: The Original Series) Obsession (Star Trek: The Original Series) "Obsession" is the thirteenth episode of the of the American science fiction television series "", broadcast on December 15, 1967. It is episode No. 42, production No. 47, written by Art Wallace, and directed by Ralph Senensky. In the episode, Captain James T. Kirk becomes obsessed with destroying a deadly entity he once encountered in his youth. During a survey for tritanium deposits, three members of a landing party from the Federation starship USS "Enterprise" are attacked, their blood drained of hemoglobin. Fearing the killer to be a gaseous entity he had encountered eleven