Unusual volcanic activity in Japan awakens Gyaos, a bloodthirsty flying monster with the power to slice things in half with an ultrasonic ray. While scientists and the military scramble to devise a way to stop this new threat, a young boy forms an alliance with Gamera; a monster no one else seems to trust.
A private detective is hired to find a missing man by his wife. While his search is unsuccessful, the detective's own life begins to resemble the man for whom he is searching.
