The Phantom from 10,000 Leagues

Also known as 10.000 Λεύγες Κάτω από τη Θάλασσα

“Terror is about to surface!”

A marine biologist and a government agent investigate mysterious deaths and rumors of a sea monster in a secluded ocean cove, and find themselves involved with a marine biology professor conducting secretive experiments, international spies trying to steal his secrets, a radioactive light on the sea bottom, and the malevolent thing which guards it.