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
The Deadly Years The Deadly Years "The Deadly Years" is the twelfth episode of the of the American science fiction television series, "". Written by David P. Harmon and directed by Joseph Pevney, it was first broadcast December 8, 1967. In the episode, strange radiation causes members of the crew of the "Enterprise" to age rapidly. The Federation starship USS "Enterprise" is ferrying a senior officer, Commodore Stocker, to Starbase 10 where he is due to assume command. On the way, the ship makes a stop at planet Gamma Hydra IV to resupply the research station there. A landing party consisting of Captain