Condensed feature version of the 1936 serial Flash Gordon, with altered musical score. The film, which was shown outside the US as simply "Flash Gordon", was re-named Rocket Ship for its 1950 stateside re-release.
A 12-episode serial in which a son avenges the death of his father at the hands of corrupt politicians. He develops a wide variety of complex devices in his crusade . . . ray guns, robots and a 'vanishing belt.'