Inventor Goro Ibuki creates a humanoid robot named Jet Jaguar. It is soon seized by an undersea race of people called the Seatopians. Using Jet Jaguar as a guide, the Seatopians send Megalon as vengeance for the nuclear tests that have devastated their society.
CAST
Kanta MoriJapan Special Defense Forces Chief
Ulf OtsukiSeatopian Agent
Sakyo MikamiTruck Driver's Assistant
Fumiyo IkedaMan from Unit 1
Gentaro NakajimaTruck Driver
Ralph JesserAntonio's Aide (Radio Operator in White)
Shinji TakagiGodzilla
Hideto OdachiMegalon
Tsugutoshi KomadaJet Jaguar
Masachika MoriJet Jaguar
