Mike Nelson sets out to prove that the death at sea of a friend's father was the result of murder. ...

Mike investigates the ramming of a Coast Guard boat by a hydroplane piloted by a friend of his during a race. ...

Mike battles underwater saboteurs, as he assists the US Navy with underwater sound travel experiments. ...

While vacationing in Nassau, Bahamas, Mike meets an eccentric multi-millionaire inventor and his sister. He helps the man experiment with an underwater remote control dev ...

A South American city's water supply is threatened by a drum of poison from an overturned truck. ...

Mike is invited to join a longtime friend and her workaholic husband on their expedition to explore an Aztec ceremonial pool on an uninhabited island located 15 miles off ...

Mike is suspected of insurance fraud, after an impostor steals a valuable necklace. ...

Mike is recruited to rescue the statue of a Saint who falls off a ship into the sea. The locals believe this is the cause of many problems in the area including the poor ...

A female diving friend of Mike's is hospitalized with severe injuries sustained by a hit-and-run speedboat piloted by a popular movie star. ...

After being falsely arrested for diving in a bay, Mike sets out to solve a murder mystery. ...

While Mike is in Nassau on a salvage job, two of his friends catch and eat a strangely poisonous fish for breakfast, which causes severe hallucinations that trigger suici ...

Mike is recruited to track down counterfeiters. ...

It's a battle of wits, as Mike tries to outsmart pirates intent on hijacking the cargo of a sunken wreck that he found. ...

Mike travels undercover to the Caribbean Coast on a secret mission for the United States Government. ...

While in the dangerous jungles of Ecuador, Mike takes desperate measures to save the life of his very ill infant godson. ...

While on a covert mission for the U.S. Government, Mike discovers a few unsavory inhabitants on what was supposedly a deserted island. ...

While searching for a sunken wreck, Mike's hard hat diving partner disappears, leaving nothing behind but his torn air hose attached to their boat on the surface. ...

Mike and his diving team are attacked by a violent new breed of octopus. ...

Mike and his partner fight the bends, as they endure a long recovery process in a submarine's escape trunk. ...

Mike and a young man, whom he had helped rehabilitate when he was a juvenile delinquent, fly to Hawaii to hunt for lionfish, one of the most venomous fish on the ocean fl ...

Mike attempts to diffuse two sunken torpedoes, as well as diffusing the racial tensions between the Japanese and American members of his 3-man team. ...

Mike tells an inept skin-diving pupil that there's no point in continuing his lessons. ...

An inventor dies while testing a new underwater detection device. ...

Professor Halliday wants more money to carry on his underwater exploration. ...

Mike attempts to salvage a survival kit from a German fighter plane shot down during World War II. ...

Mike takes part in a special program known as Operation Astronette. His job is to train three female astronauts in underwater survival skills. ...

Mike travels to Mexico in search of underwater fossils in an inaccessible cave. ...

Using sonar equipment on his boat, Mike tracks heroin smugglers. ...

Problems arise as Mike attempts to retrieve a pair of radioactive cylinders leaking dangerous amounts of radiation underwater. ...

Mike risks his life in order to sneak badly needed medical supplies through a dictator's mine-infested blockade. ...

Mike must dive to rescue a friend trapped in a sunken wreck, with just minutes left until explosive charges are set to blow it to pieces. ...

Mike tries to recover valuable medical supplies that an Asiatic warlord has dumped into the river. ...