John Hart stars as Jack Armstrong, the All-American Boy, who battles the evil Dr. Grood, who has placed a death ray aboard his spaceship orbiting Earth. In this exciting serial, Jack Armstrong and his friends attempt to rescue a renowned scientist, the inventor of a revolutionary atomic engine, from the clutches an arch-villain bent on world-dominion by means of a death ray place on board a aircraft capable of flying into the ionosphere. Their quest takes the adventurers to a remote island where they must not only contend with the criminal mastermind’s henchmen, but a fierce tribe who have their own reasons for thwarting our heroes. One of the great radio shows and exciting serials of the 1940s.
