While diving, Matt Farrell is kidnapped by Neva Gordon and Steinman and taken to an island where Neva's father Dr. Gordon is experimenting, trying to make a "super race"…
A serial killer named The Shark is terrorizing London by killing his victims with a speargun and then, dressed in a scruba-diver's wetsuit, using the city's sewer…
In the Salton Sea, an underwater earthquake causes a crevice to open, releasing prehistoric giant mollusks. A rescue training parachute jump is conducted, but the patrol…
A geology expedition in the Amazon uncovers fossilized evidence (a skeletal hand with webbed fingers) from the Devonian period that provides a direct link between land…
Captain Joe Ryan is salvaging for treasure off the coast of Ireland when a volcano erupts, nearly sinking his ship. Ryan and his First Officer and friend, Sam Slade,…
Toni is a smart drug smuggler, living in a luxuriously home by the beach. The pot (ganja) producers pack it in crates, take it from Jamaica to a precise point of New…
A group of scientists and their support crew of five sailors land on a remote island in the Pacific Ocean. They are searching for a previous expedition that disappeared…
Dominic Quesada and Johnny Gray, two SCUBA divers searching for sunken treasure off the coast of Cuba, think they\'ve hit the jackpot when they find a 17th century ship…
A young woman named Arletty (Marianna Hill) drives to the beach town of Point Dume, California, to visit her estranged father, an artist. She finds his beachfront house…
Solana Beach, a seaside tourist resort, has come under attack by a giant octopus, which captures and devours human swimmers and boaters, picking the skeletons clean of…