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:Katsuhiko Sasaki, Yutaka Hayashi, Hiroyuki Kawase, Kanta Mori, Kotaro Tomita, Ulf Otsuki,

Genre:Action, Adventure, Science Fiction, Fantasy,

country:Japan,

Production:TOHO, Toho Eizo Bijutsu, Tokyo Laboratory,