is a 1974 Japanese kaiju film directed by Jun Fukuda, with special effects by Teruyoshi Nakano. Produced and distributed by Toho, it is the 14th film of the Godzilla franchise, and features the fictional monster characters Godzilla, Anguirus, and King Caesar, along with the mecha character Mechagodzilla. The film stars Masaaki Daimon, Kazuya Aoyama, Gorō Mutsumi, and Akihiko Hirata, with Isao Zushi as Godzilla, Satoru Kuzumi as both Anguirus and King Caesar, and Kazunari Mori as Mechagodzilla. The film marks the first appearances of King Caesar and Mechagodzilla in the franchise.

Plot

Strange events are taking place in Okinawa. An Azumi priestess has a terrifying vision of a city being destroyed by a giant monster. A type of metal not found on Earth is discovered in a cave by a spelunker, Masahiko Shimizu, who takes it to Professor Miyajima for examination. An excavation led by Masahiko's brother Keisuke accidentally uncovers a chamber filled with ancient artifacts and a mural bearing an ominous prophecy: "When a black mountain appears above the clouds, a huge monster will arise and try to destroy the world; but when the red moon sets and the sun rises in the west, two monsters shall appear to save the people." Keisuke is joined by archaeologist Saeko Kaneshiro, who translates the prophecy and takes one of the artifacts, bearing the likeness of the legendary monster King Caesar, to study. Two men stalk them, one who speaks to them and claims to be a reporter interested in the story, the other of whom attempts to steal the statue from them but fails and flees.