Two young boys sneak aboard a spaceship and find themselves whisked away to the mysterious planet Terra. There, they encounter Gamera's old foe Gyaos and two female aliens with a taste for human brains. Gamera must save the children and battle the new monster Guiron, whose entire body is a deadly living weapon.
Nobuhiro Kajima
Akio
Christopher Murphy
Tom
Miyuki Akiyama
Tomoko
Eiji Funakoshi
Dr. Shiga
Kon Omura
Officer Kon Kondo
Yūko Hamada
Kuniko
Reiko Kasahara
Florbella
Edith Hanson
Elza
