Three deep sea divers get involved in murder while searching for a lost treasure.

When a scheming fortune hunter finds his rich wife is not going to die as expected, he and his lover make other plans to get her millions.

An ex-American GI returns to Italy to find some money he stashed before doing a prison term. He discovers his cash is now gone and quickly sets off on a manhunt to find out who stole his buried fortune.

A botanical expedition to the Himalayas captures a Yeti and brings it back alive to Los Angeles, where it escapes and runs amok, seeking food.

After a UFO sighting, a mysterious phantom in a bizarre outfit starts attacking people in San Fernando Valley.

Atomic scientist/pilot Doug Martin is missing after his plane crashes on an reconnaissance mission after a nuclear test. Miraculously appearing unhurt at the base later, he is given sodium amethol, but authorities are skeptical of his story that he was captured by aliens determined to conquer the Earth with giant monsters and insects. Martin vows to use existing technology to destroy them.