A monstrously wicked extraterrestrial brain leads his interplanetary hordes in an attempt to conquer the universe! He creates ghastly monsters on Earth that mutate and spread deadly disease while threatening the world with nuclear destruction. Intergalactic superhero Starman races to the rescue but must battle an army of hideous ogres with deadly radioactive claws. Time is running out for Planet Earth! This chilling science fiction film, edited from the Japanese television series Super Giant, mixes Cold War tension and martial arts action with the heroics of America's Superman.