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.
Sanna escapes being sacrificed and meets Tara. Together, they live in a seaside tribe that worships the Sun God and survive the dangers of the creatures from the Mesozoic Era.
A time traveling scientist goes back to prehistoric times and feeds dinosaurs a magic cereal that increases their intelligence - next they land in modern New York City for a series of comic adventures.
An orphaned brontosaurus teams up with other young dinosaurs in order to reunite with their families in a valley.
A petroleum exploration expedition comes to an isolated island and encounters a colossal giant gorilla.
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.