The Changeling (Star Trek: The Original Series) The Changeling (Star Trek: The Original Series) "The Changeling" is the third episode of the of the American science fiction television series "". Written by John Meredyth Lucas and directed by Marc Daniels, it was first broadcast on September 29, 1967. The crew of the USS "Enterprise" deals with a life-destroying space probe originally launched from Earth. The plot contains similarities to the later . The "Enterprise" investigates a distress call from the Malurian star system. Upon arrival, First Officer Spock reports no life readings from any of the 4 billion inhabitants, despite otherwise normal recent communications. The ship's shields
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