Sea Hunt (1958)

When three brothers hire Mike Nelson for SCUBA training, he discovers their hidden agenda: using their newfound diving skills to orchestrate an underwater prison break at Alcatraz. Mike must act quickly to stop their daring escape plan.

An old frogman friend tricks Mike Nelson into helping procure dynamite for a bank heist. Realizing he's been duped, Mike must quickly act to prevent the underwater vault robbery and clear his unwitting involvement.

On a government assignment, Mike tests underwater security at a rocket fuel plant. After capturing two saboteurs, he discovers they've launched a delayed-action torpedo. Now Mike must make a perilous dive to disarm the explosive threat.

After a hurricane sinks an electronic test boat with a new guided missile tracker, Mike Nelson is hired for recovery. He discovers thieves have already taken the tech, leading to intense underwater and land battles to retrieve the vital equipment.

A movie company hires Mike Nelson to assist with a dangerous underwater scene from 'The Count of Monte Cristo'. As he manages the star's recklessness and the stand-in's jealousy, Mike must use his expertise to ensure safety and save lives.

Mike Nelson accepts a challenge to race underwater from California to Catalina against expert swimmer Blaze Green. Her reckless pursuit of publicity leads to danger when she swims into a subsurface storm, forcing Mike to attempt a daring rescue.

Mike takes future space pilots for underwater training, highlighting survival similarities between deep sea and outer space. When a hurricane strands them underwater, Mike must lead the group against cold, panic, and lurking sharks to survive.

When a scuba diver is dragged underwater by a speared fish, Mike Nelson dives to the rescue. He discovers the victim trapped in a treacherous kelp forest, battling tangled vegetation to save the imperiled diver.

An Air Force bomber jettisons an unarmed nuclear bomb during a hurricane off South America's coast. As seawater corrodes the casing, risking detonation, Mike races against time to locate and recover the bomb before a catastrophic explosion occurs.

Hired to teach SCUBA to Paul Garrick's paralyzed wife, Mike Nelson uncovers a murderous plot. Garrick plans to use the powerful underwater currents of Drake's Cove to kill his wife, forcing Mike into a fierce battle to prevent the crime.

When a freighter sinks in New York harbor, Mike Nelson is called to check for survivors in potential air pockets. During his search, Mike becomes trapped in a flooded cabin, turning his rescue mission into a fight for his own survival.

During an underwater security check of a new turbo-electric dam, Mike Nelson finds dynamite hidden in an intake valve. He must race against time to catch the saboteurs and prevent the dam's destruction.

A fierce dock fire approaches a waterfront chemical supply building, risking a massive explosion that could devastate the entire city. With conventional access cut off, Mike attempts a near-suicidal underwater effort to prevent disaster.

Smugglers force Mike Nelson at gunpoint to locate and retrieve their narcotics cache from the ocean floor. Trapped in this dangerous situation, Mike must use his wits and diving skills to outsmart the criminals and disrupt their operation.

After divers near a sunken WWII Japanese submarine exhibit bizarre behavior, Mike Nelson investigates. He discovers leaking nerve gas and must risk exposure to find and neutralize the deadly underwater threat.

While investigating mysterious drownings, Mike Nelson discovers a sunken yacht harboring valuable jewels and a deadly secret. He must confront Lou Martin, a ruthless salvager who's been systematically looting the wreck and eliminating competition.

While surveying potential canal sites connecting two Latin American lakes, Mike is attacked by rebels. He uncovers their hidden arms cache, realizing his discovery threatens their planned revolution. Mike must now fight to prevent the uprising.

While testing an invention off Panama's coast, Mike Nelson and his team discover a mysterious submarine deploying frogmen to prepare a missile launch site aimed at the Panama Canal. In grave danger, they desperately attempt to alert the Coast Guard.

Sponge-diver Elias Staros and his girlfriend Cara find a valuable antique statue on the seabed. Fearing Mike's interference, they set underwater booby-traps, but the situation turns deadly when Staros is killed by his own mine.

When a government scientist's briefcase containing secret missile data is deliberately dropped overboard and stolen by underwater accomplices, Mike is called for an urgent recovery mission and must outwit the thieves and retrieve the case.

While searching for uranium in an underwater cave, geologist George Bryan becomes trapped by a sudden landslide. Mike Nelson races against time to free him, using innovative techniques to move the massive rock blocking the cave entrance.

When Joe Ross drowns during a water ski show's underwater finale, Mike investigates. He discovers an unidentified scuba diver was spotted near the scene and learns of a jealous ex-husband's threats, leading to a fierce underwater confrontation.

Mike joins an archaeology team searching underwater caves only to discover a Mayan treasure trove protected by lethal booby traps. When the archaeologist's wife enters the cave, hostile islanders seal her inside, forcing Mike to attempt a rescue.

Latin American revolutionaries seek Mike's help recovering a murdered opponent's body from the palace lagoon so as to have incriminating evidence. But as Mike investigates, another rebel is mysteriously killed, deepening the conspiracy.