, released in the United States as Godzilla versus the Sea Monster, is a 1966 Japanese kaiju film directed by Jun Fukuda and produced and distributed by Toho Co., Ltd. The film stars Akira Takarada, Kumi Mizuno, Akihiko Hirata and Eisei Amamoto, and features the fictional monster characters Godzilla, Mothra, and Ebirah. It is the seventh film in the Godzilla franchise, and features special effects by Sadamasa Arikawa, under the supervision of Eiji Tsuburaya. In the film, Godzilla and Ebirah are portrayed by Haruo Nakajima and Hiroshi Sekita, respectively.

Plot

After Yata is lost at sea, his brother Ryota steals a yacht with his two friends and a bank robber. However, the crew runs afoul of Ebirah, a giant lobster-like creature, and washes ashore on Letchi Island. There, the Red Bamboo, a terrorist organization, manufactures heavy water for selling weapons of mass destruction and a yellow liquid that keeps Ebirah at bay, presumably controlling him. The Red Bamboo has enslaved natives from nearby Infant Island to create the yellow liquid, while the natives hope that Mothra will awaken in her winged, adult form and rescue them.