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.
Gamera vs. Gyaos is a 1967 Japanese kaiju film directed by Noriaki Yuasa, with special effects by Yuasa. Produced by Daiei Film, it is the third entry in the Gamera franchise and stars Kojiro Hongo, Kichijiro Ueda, Tatsuemon Kanamura, Reiko Kasahara, and Naoyuki Abe, with Teruo Aragaki as Gamera. In the film, Gamera and authorities must deal with the sudden appearance of a carnivorous winged creature awakened by volcanic eruptions.