When underground nuclear testing threatens their underwater kingdom, the residents of Seatopia (a state consisting of Lemuria and Mu) summon Megalon (a giant cockroach with drill arms and the ability to launch explosive ovals from his mouth) to destroy the surface dwellers. To guide Megalon, Seatopians steal Jet Jaguar from a pair of inventors/roommates/fathers. The inventors are able to regain control of Jet Jaguar, sending him to summon Godzilla, while the Seatopians summon Gigan to guide Megalon…and an all out tag team Kaiju wrestling match for the fate of the world ensues.![]()
