First and only season of this revamped series.
Aired: 9/24/1987
Mike and Jennifer try to salvage drums of toxic waste from the ocean depths.
Aired: 10/1/1987
A man (Donnelly Rhodes) hires Mike (Ron Ely) to teach his paralyzed wife scuba diving---only to fire him when the therapy begins to show results.
Aired: 10/8/1987
When Mike (Ron Ely) is hired to study the proposed site of an underwater park, his life is threatened by men who are illegally mining the mineral-rich area.
Aired: 10/15/1987
The Nelsons investigate a marina construction company that is setting off explosions that are disturbing an underwater volcano.
Aired: 10/22/1987
A federal agent, William Taylor, hires Mike (Ron Ely) to collect evidence on a crime boss plotting a drug scam.
Aired: 10/29/1987
The Nelsons help a pearl farmer (Lisa Lau) catch the thieves who've been stealing from her each year at harvest time.
Aired: 11/5/1987
Mike confronts his worst nightmare when an old friend and an old enemy come back into his life to threaten Jenny.
Aired: 11/12/1987
When Jenny meets an acquaintance of Mike's, treasures of the sea and of the heart are in the balance, which causes Mike some measure of concern.
Aired: 11/19/1987
While scuba diving, the Nelsons discover the wreckage of a plane---which involves them in a plot to steal computer software.
Aired: 11/26/1987
A magic trick turns deadly when Mike (Ron Ely) makes the acquaintance of a temperamental illusionist who's trying to perfect his underwater escape act.
Aired: 12/3/1987
Drug smugglers force Mike at gunpoint to help them retrieve a sunken shipment of narcotics.
Aired: 12/10/1987
Jenny and Mike look into the peculiar behavior of two ecologists — and find a deadly underwater mine in the process.
Aired: 12/17/1987
When Jennifer fails to return from working on a research project in the Caribbean, Mike (Ron Ely) risks his own life to search for her.
Aired: 12/24/1987
A best-selling adventure writer lady challenges Mike to a scuba race.
Aired: 12/31/1987
Mike becomes suspicious of a woman's motives for taking diving lessons when he learns that she's afraid of deep water.
Aired: 1/7/1988
Aired: 1/14/1988
Mike learns that the two men who chartered the Sea Hunt to go scuba diving are really seeking safety from hit men.
Aired: 1/21/1988
Two brothers (Terence Kelly, Denis Blouin) charter the Sea Hunt for a diving expedition, hoping to discover where the previous owner of the boat hid stolen treasure.
Aired: 1/28/1988
Mike (Ron Ely) is hired by a professor at the Marine Institute to search for fossils and runs up against two young thugs intent on finding the fossils before him. Kimber Sissons. Bernardo, a young Mexican boy helps Mike locate a safe entrance to an underwater fossil cave.
Aired: 2/4/1988
Mike comes to the aid of his former diving instructor, a cantankerous old man (Barney O'Sullivan) on the trail of sunken treasure.
Aired: 2/11/1988
Mike and Jennifer rescue two injured divers, who later claim to have seen a beautiful woman underwater and heard bells ringing.
Aired: 2/18/1988
The Phantom is a submarine fitted with a camera. Through the powerful underwater video camera, Mike (Ron Ely) watches two men hide something near a coral reef and his further investigations lead him to a spy ring.