Fifth Gamera film continued the astonishing decline in quality, as three children are abducted from their neighborhood by a spaceship piloted by two alien women who claim to be friendly, but in reality are anything but, as they plot to kill the children before turning their attentions to Earth. Meanwhile, Gamera flies into outer space to rescue the children, and save the Earth, but first must do battle with a strange monster called Guiron who has a giant knife for a head, which it uses on another Gyaos, then turns on Gamera... Childish entry(with gruesome elements) has a memorable monster in Guiron, but is otherwise idiotic.