A petroleum exploration expedition comes to an isolated island and encounters a colossal giant gorilla.
An orphaned brontosaurus teams up with other young dinosaurs in order to reunite with their families in a valley.
During World War I, a German U-boat sinks a British ship and takes the survivors on board. After it takes a wrong turn, the submarine takes them to the unknown land of Caprona, where they find dinosaurs and neanderthals.
A film crew goes to a tropical island for a location shoot, where they capture a colossal ape who takes a shine to their blonde starlet, and bring him back to New York City.
The advertising director of a pharmaceutical company seeks to boost the ratings of their sponsored TV program by capturing the legendary monster King Kong just as Godzilla re-emerges.
Scout pilots for a fishing company are startled to discover a second Godzilla, whose battle with rival monster Anguirus threatens to destroy Osaka.
