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. Plans for a third film were made immediately after the release of Gamera vs. Barugon, with the film financed by the UniJapan Film Association. Due to the underperformance of the previous film, Yuasa was brought back as the director and special effects director, who decided to aim the film towards children. Gyaos was created as a response to Toho's Frankenstein Conquers the World and The War of the Gargantuas, with Yuasa pitching to writer Niisan Takahashi his idea to turn Dracula into a kaiju. Gamera vs. Gyaos was theatrically released in Japan on March 15, 1967, on a double bill with Chiisai Tôbôsha. That same year, it was released directly to television in the United States as Return of the Giant Monsters by American International Television. The film was followed by Gamera vs. Viras, released on March 20, 1968. Plot A series of mysterious volcanic eruptions in Japan impact shipping and aircraft flights. An eruption at Mount Fuji attracts the giant turtle kaiju Gamera, whose arrival is witnessed by a young boy named Eiichi. A research team is sent to investigate but are killed by a supersonic ray emitted from a cave. A reporter, Okabe, departs to Mt. Fuji to investigate. The Chuo Expressway Corporation's plans for a roadway face challenges when the local villagers refuse to leave. The resistance is a ploy to increase the bid on the land. The foreman, Shiro Tsutsumi, and his crew are turned away by the locals as Okabe sneaks past. Eiichi finds Okabe in the woods and leads him to a cave where Gamera might be. Okabe abandons Eiichi as the cave collapses and is devoured by a winged creature. Gamera emerges and saves Eiichi from the winged beast but is wounded in the process by its supersonic ray. While interviewed by Dr. Aoki and authorities, Eiichi names the winged monster "Gyaos". Dr. Aoki deduces it was awakened by the volcanic eruptions, can produced a supersonic ray due to a forked tongue, and cannot turn its