On a world where nighttime only comes every 2,500 years, what happens when darkness is about to fall? Based on Isaac Asimov's classic story, this episode of Dimension X originally aired on September 29, 1951.
Featuring "adventures in time and space told in future tense", Dimension X aired over NBC from April 8, 1950, through September 29, 1951. The series adapted stories by the modern masters of science fiction, including Ray Bradbury, Robert Heinlein, Clifford Simak, Theodore Sturgeon, and many others.