The story involves the superhero Starman (Super Giant in Japan) who is sent by the Emerald Planet to protect Earth from the nuclear holocaust threatened by the country of Metropol.

The 2 original Japanese films which went into Atomic Rulers of the World (Super Giant and Super Giant Continues) were 49 minutes and 53 minutes in duration.

Also, most of the original music was scrapped and replaced by library cues.

Something Weird Video with Image Entertainment released the film and another Starman film, Invaders from Space on a single disc on December 10, 2002.

Alpha Video also released a budget-priced disc of the film by itself on June 22, 2004.