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 2023-07-23. Youtube Trailer

A mad scientist, Dr. Aranya (Jackie Coogan), has created giant spiders in his Mexican lab in Zarpa Mesa to create a race of superwomen by injecting spiders with human pituitary growth hormones. Women develop miraculous regenerative powers, but men mutate … Jackie Coogan, Allan Nixon, Richard Travis, Lyle Talbot, Paula Hill, Tandra Quinn, Robert Knapp Added on Amazon Prime 2023-02-06. Youtube Trailer