The underground kingdom of Seatopia sends out Megalon, a giant beetle, and Gigan to destroy the above ground dwellers. In an attempt to stop them, an independently thinking robot brings…

Coming to Earth on a fallen meteorite, The microscopic alien life-form Hedorah feeds on Earth's pollution and grows into a Gigantic, ever Evolving, poisonous Gas and acid-secreting monster. Godzilla, Earth's…