The story involves the superhero Starman who is sent by the Emerald Planet to protect Earth from the Salamander Men of the planet Kulimon in the Moffit galaxy who plan to destroy Earth.

The 2 original Japanese films which went into Invaders from Space (The Mysterious Spacemen's Demonic Castle and Earth on the Verge of Destruction) were 48 minutes and 39 minutes in duration.

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

Something Weird Video with Image Entertainment released the film and another Starman film, Atomic Rulers of the World on a single disc on December 10, 2002.

This 1960s science fiction film–related article is a stub.