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Shortly after a skin diver steals lobsters from an old fisherman as part of a secret club initiation, he disappears. Mike Nelson finds his spear gun near the lobster pots and the fisherman is accused of murder.
All Episodes - S02
EPS01
Three brothers pose as abalone fishermen and hire Mike to teach them to use scuba gear. Mike becomes suspicious, trails the siblings, and discovers their real reason for ...
EPS02
Mike unwittingly becomes involved in the preparation of an underwater bank robbery. ...
EPS03
Mike battles saboteurs, while conducting an underwater security check for a rocket fuel plant. ...
EPS04
Mike battles spies in an underwater maze of caves. ...
EPS05
Mike signs on as tech adviser to a movie company filming yet another version of The Count of Monte-Cristo. The director wants to shoot the underwater escape of Edmond Dan ...
EPS06
A woman, who is willing to do anything she can to win, challenges Mike to an underwater race, as a publicity stunt. ...
EPS07
Mike Nelson is called in on a space project and commissioned to experiment underwater with four top candidates for space travel. ...
EPS08
Mike Nelson and three of his students search for a missing diver, who was dragged deep below the surface by a large fish that he speared. ...
EPS09
Mike conducts an emergency covert search in foreign waters to recover a nuclear warhead ditched by a U.S. Air Force plane. A local fishing boat interferes. ...
EPS10
A beautiful millionairess who was crippled by a mountain climbing accident has her husband and doctor recommend scuba diving as therapy for her legs. Nelson is hired to w ...
EPS11
Mike conducts a desperate search for survivors soon after a freighter sinks to the bottom of a river in the city of New York. He finds two trapped men and a dog named Tig ...
EPS12
Mike investigates sabotage of a turbo-electric dam located in a desert area of a small country. ...
EPS13
Mike takes on a possible suicide mission, when he agrees to swim with a fire hose through an underwater intake pipe into a burning warehouse filled with combustible chemi ...
EPS14
Nelson passing on an invitation to enjoy a break at Catalina Island instead decides to do some needed maintenance work on his boat. However,he is hired at gunpoint to ret ...
EPS15
After discovering a lost WWII submarine a scuba diver has a violent seizure. His wife radios for help and Nelson and a friend respond. After giving resuscitation Nelson a ...
EPS16
Mike helps the police investigate the apparent murders of two divers who were searching for a sunken yacht full of treasure. ...
EPS17
While looking into the possibility of linking two Latin American lakes by a canal, Mike runs into a group of rebel guerillas. ...
EPS18
While on a research project, Mike encounters saboteur frogmen attempting to destroy the Panama Canal. ...
EPS19
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 sea ...
EPS20
Mike searches for a diver who has just stolen a briefcase filled with top secret papers. ...
EPS21
Nelson is hired to assist a Geology Professor who has found uranium deposits in an underwater cave. As Nelson is about to enter the cave,a freak underwater landslide trap ...
EPS22
A champion water-skier drowns during the finale of a water show. ...
EPS23
Mike takes a husband and wife archaeologists on a cave dive. ...
EPS24
While on a diving assignment in a foreign country, Mike Nelson unwillingly becomes involved in proving that the country's military ruler is guilty of murdering a member o ...
EPS25
Shortly after a skin diver steals lobsters from an old fisherman as part of a secret club initiation, he disappears. Mike Nelson finds his spear gun near the lobster pots ...
EPS26
Mike is recruited to search for hidden stolen liquid explosives. ...
EPS27
Mike attempts to rescue a kidnapped friend. ...
EPS28
When a nosecone's capsule fails to eject after landing in the ocean, Mike attempts to locate it and rescue the scientist trapped inside. ...
EPS29
A female diving student plots revenge after Mike kicks her out of his diving class. ...
EPS30
Mike Nelson is on assignment to locate narcotics hidden below the waterline of vessels in the harbor. ...
EPS31
While conducting a visual and photographic survey for a State underwater park, Mike becomes a target for murder. ...
EPS32
Mike takes part in a daring rescue mission of a woman held prisoner by foreign forces. ...
EPS33
Mike risks his life to catch pearl thieves off the coast of Hawaii. ...
EPS34
Mike helps to bust up a murderous alien-smuggling ring. ...
EPS35
Mike gets involved in recovering stolen six valuable computer memory tapes, which are being held for ransom. ...
EPS36
Mike attempts to free a salvage diver trapped under a tremendously heavy piece of deck cargo. ...
EPS37
Mike attempts to rescue a couple inexperienced divers from the deep. ...
EPS38
A deep sea fisherman and his son arm and plant a World War II mine in an attempt to destroy a kelp harvester. ...