Hosted by Truman Bradley, a 1940s film actor and former war correspondent, each episode introduced stories which had an extrapolated scientific, or pseudo-scientific emphasis based on actual scientific data available in the 1950s. Typically, the story lines related to the life or work of scientists, engineers, inventors and explorers. The program concentrated on such concepts as space flight, robots, telepathy, flying saucers, time travel, and the intervention of extraterrestrials in human affairs.
