The Office of Scientific Investigations tracks down the source of increased magnetism and radioactivity in Los Angeles, and discovers that a man-made isotope is consuming available energy from nearby mass every few hours, doubling its size in the process. Although … Richard Carlson, King Donovan, Leo Britt, Jean Byron, Harry Ellerbe, Frank Gerstle, John Vosper Added on Amazon Prime 2023-08-04. Youtube Trailer