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. ...

Mike desperately tries to save the life and limb of a popular dancer whose leg is hopelessly pinned in wreckage 90 feet below the surface. ...

Mike's normally level-headed skindiving buddy begins to exhibit peculiar behavior. ...

Mike investigates the mysterious collision of two Navy destroyers. ...

While in a South American jungle, Mike tangles with a jealous treasure hunter. ...

As part of a research project, Mike Nelson attempts to spend three days underwater at a depth of 250 feet in a pressure chamber dubbed Scubasphere. A tropical storm pops ...

Mike attempts to recover a Top Secret diplomatic pouch lost in hostile foreign waters. ...

The US Coast Guard recruits Mike to search for a missing missile on the ocean floor. ...

Mike attempts to rescue a movie starlet trapped underwater aboard a ship, which is flooded after a special effects dynamite blast. ...

Mike searches underwater for enemy scanning devices being utilized to jam American satellite signals. ...

Mike tangles with divers growing a hybrid form of marijuana under water. ...

Mike gets mixed up with two scientists trying to examine fossils from the sea. ...

Mike investigates the mysterious drowning death of the inventor of an advanced rebreather device. ...

Mike comes to the aid of his old diving instructor, whom is now getting too old to make dangerous dives. ...

Mike is retained by a small Latin American country to train a cadre of underwater demolition experts. Mike and his team spring into action when the country's president is ...