Amerikansk omklippt version av Gojira (1954) med nya scener tillagda. Reportern Steve Martin mellanlandar i Tokyo för att träffa en gammal bekant, samtidigt så förstörs fartyg till havs. Öbor i närheten säger att det är Godzilla, experter och forskare åker dit för att undersöka saken.
During World War II, an American bomber pilot is rescued after drifting at sea aboard a raft. After being administered truth serum, he tells the doctor a story of how he and the three survivors of his plane crash washed up on an island that was inhabited by a tribe of beautiful primitive cave-women, dinosaurs and a group of savage cavemen who are bent on abducting the women for breeding purposes.
A nightclub operator (Mara Corday), her sister (Barbara Bostock), a beautician (Lita Milan) and two other women rob a payroll.