A team of geophysicists investigating seismic activity on the seafloor discover that the islands of Japan, after suffering from massive volcanic eruptions and earthquakes, will be pulled into the ocean,…

When a giant stone statue on Wester Island is disturbed, the legendary monster Jiger appears and heads for Japan. Gamera tries to stop this new rival, only to be injured…

While covering a test of guided torpedoes, two reporters believe they see what appears to be a strange-looking swimming creature. They investigate the matter further and discover that there is…