Another movie company using Mike as an advisor needs his help when a planned torpedo blast traps the star and a Hollywood columnist onboard a sinking ship.

While helping his former history professor search for pirate treasure off the North Carolina coast, Mike finds evidence that the underwater cave said to house the treasure has been tampered with.

A scuba diving ballerina faces the possibility of underwater amputation when she catches her foot between the buckled plates of a sunken freighter.

The murder of a telephone company employee leads Mike to an underwater cable that is being tapped to access top-secret research Conferences.

A man planning to murder his wife hires Mike to teach her to scuba dive so that he may lure her into a dangerous underwater current.

While helping to test a friend's underwater radio device, Mike discovers a submerged radio beacon, camouflaged and guarded by an electric gun.

Mike scouts a path through mine-infested waters so that medical supplies can reach a China Sea port hit by a cholera epidemic.

Mike competes with a pair of helmet divers to salvage a German submarine sunk off the coast of South America.

Mike comes to the rescue of a scuba diver who has been trapped in a kelp bed while spear fishing.

Mike leads the way in a salvage operation to recover more than a million dollars' worth of gems from the captain's safe of a sunken ship.

Mike responds to a ""man overboard"" situation, but an extensive search turns up no victim.

Unaware that two of his treasure-hunting friends are trapped inside, Mike sets charges to blow up a sunken ship that is a menace to a busy shipping lane.

A pair of ruthless treasure hunters dupes a young skin diver into helping them loot a sunken ship.

As consultant on a remake of The Count of Monte Cristo, Mike finds that the emotions of the star and his stand-in may lead to disaster in the execution of a stunt.

Mike and a group of astronauts-in-training are stranded on the seabed when a hurricane blows their boat away.

A Greek sponge diver and his pretty girlfriend lay a minefield for Mike, fearful that he will interfere with their discovery of a valuable statue on the Mediterranean seabed.

A husband and wife team of photojournalists ignore Mike's warnings about diving on a sunken ocean liner and are imperiled by the pressures of the deep.

A scientific society hires Mike to obtain fossil samples from a newly-discovered underwater cavern for the purpose of authentication.

A man bribes Mike to continue giving lessons to an inept diving student whom he's stopped teaching.

Mike tries to free the pilot of a downed jet from his watertight cockpit before his air runs out, without causing the man's death from the water pressure.

A vicious alligator escapes from a wild animal show and takes refuge in the lake of a public park.

Mike is hired to dive on a sunken freighter in New York Harbor in the hopes that some crew members may still be alive in air pockets.

In preparation for the visit of a foreign head of state, Mike helps the Coast Guard do a security check on the area.

A new revolutionary leader asks Mike to help him retrieve his country's hidden gold reserves, believed to have been hidden aboard a scuttled freighter by the ousted former dictator.

Mike becomes suspicious when his hired dive on a Spanish galleon yields a rare art treasure.