Seasons & Episodes
Toxic Waste
Mike and Jennifer try to salvage drums of toxic waste from the ocean depths.
Murder at Sixty Feet
A man (Donnelly Rhodes) hires Mike (Ron Ely) to teach his paralyzed wife scuba diving---only to fire him when the therap
Underwater Park
When Mike (Ron Ely) is hired to study the proposed site of an underwater park, his life is threatened by men who are ill
Underwater Quake
The Nelsons investigate a marina construction company that is setting off explosions that are disturbing an underwater v
The Meeting
A federal agent, William Taylor, hires Mike (Ron Ely) to collect evidence on a crime boss plotting a drug scam.
Pearl Beds
The Nelsons help a pearl farmer (Lisa Lau) catch the thieves who've been stealing from her each year at harvest time.
The Big Blow-Up
Mike confronts his worst nightmare when an old friend and an old enemy come back into his life to threaten Jenny.
Treasure Hunt
When Jenny meets an acquaintance of Mike's, treasures of the sea and of the heart are in the balance, which causes Mike
The Torch Men
While scuba diving, the Nelsons discover the wreckage of a plane---which involves them in a plot to steal computer softw
Girl In Trunk
A magic trick turns deadly when Mike (Ron Ely) makes the acquaintance of a temperamental illusionist who's trying to per
The Persuaders
Drug smugglers force Mike at gunpoint to help them retrieve a sunken shipment of narcotics.
Danger--Mines Ahead!
Jenny and Mike look into the peculiar behavior of two ecologists — and find a deadly underwater mine in the process.
Jennifer's Rescue
When Jennifer fails to return from working on a research project in the Caribbean, Mike (Ron Ely) risks his own life to
The Stunt
A best-selling adventure writer lady challenges Mike to a scuba race.
Wet Diamonds
Mike becomes suspicious of a woman's motives for taking diving lessons when he learns that she's afraid of deep water.
Ultrasonic Tag
Mike becomes suspicious of a woman's motives for taking diving lessons when he learns that she's afraid of deep water.
The Witness
Mike learns that the two men who chartered the Sea Hunt to go scuba diving are really seeking safety from hit men.
The Sea Hunt's Been Stolen
Two brothers (Terence Kelly, Denis Blouin) charter the Sea Hunt for a diving expedition, hoping to discover where the pr
Amigo
Mike (Ron Ely) is hired by a professor at the Marine Institute to search for fossils and runs up against two young thugs
The Scavenger
Mike comes to the aid of his former diving instructor, a cantankerous old man (Barney O'Sullivan) on the trail of sunken
The Siren
Mike and Jennifer rescue two injured divers, who later claim to have seen a beautiful woman underwater and heard bells r
The Phantom Strikes
The Phantom is a submarine fitted with a camera. Through the powerful underwater video camera, Mike (Ron Ely) watches tw
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