Starlock is a super-powered alien stranded on Earth who shares bodies with astronaut Nick Thaler. He becomes hunted by the U.S. government and the evil organization S.P.I.D.E.R. led by Madame Tarentula.
The evil organization S.P.I.D.E.R. takes an interest in Starlock, in whom they see the key to becoming masters of Earth. But can they force the powerful alien to do their bidding?