Peter Omir, a super-human android, will stop at nothing—not even the annihilation of the planet—in his quest...

In the absence of Admiral Nelson, Admiral Park takes his place as a crazed scientist creates a giant, menacing...

While on a mission to recover dangerous fuel cylinders from a wrecked submarine, the Seaview is attacked by an...

The body count aboard the Seaview mounts as the damaged ship becomes part of a sinister plot to sabotage a...

Crane is held captive on the Isle of Death as the Flying Sub is attacked by a mysterious underwater pirate...

The President’s life is endangered by the subject of a bizarre experiment, a gigantic whale that has swallowed...

It’s a race against time as the Seaview is imperiled by a scientist desperate to retrieve data pertaining to a...

When the Van Allen radiation belt catches fire, Nelson’s plan to extinguish the blaze is thwarted by a...

The crew of the Seaview is haunted by a phantom U-Boat and her ghostly captain.

As two escaped convicts plot to hijack the Flying Sub, the Seaview is menaced by a monster from the deep.

With Crane being held hostage, Nelson leads the fight against a sinister foreign power intent on stealing...

Commander Crane leads the rescue mission as Admiral Nelson and Chief Sharkey struggle to survive on a...

While on a mission to retrieve an unmanned space probe, the Seaview is taken over by a deadly...

The Seaview races to the rescue when rogue drone submarines begin attacking the Eastern United States.

In order to rescue a kidnapped scientist, Nelson infiltrates a mysterious toy company serving as a front for...

When a space probe is mysteriously destroyed, Captain Crane heads into hostile waters to locate the source of...

In order to retrieve and disarm a lethal proton bomb, Crane must team up with a brilliant scientist who long...

At the behest of a brilliant scientist, Nelson and the crew investigate a fissure in the Earth’s crust which...

After leading the President of the United States on a tour of an undersea bomb shelter, Nelson must locate the...

A deadly assassin with something up his sleeve stalks Nelson as he attempts to stop a subversive plot to...

While undercover in Venice, Crane is framed for murder and is hunted by enemy agents and the police.

A cyborg double of Admiral Nelson boards the Seaview as part of a sinister plan to launch missiles at China,...

The Seaview is off to rescue the crew of a World War II submarine, trapped for 28 years in an underwater cave.

While investigating a secret Soviet nuclear reactor, Nelson is injected with a substance turning him into a...

While working to salvage an undersea laboratory, Admiral Nelson and a Russian scientist are trapped when their...

Nelson's sister is abducted by enemy agents who demand top-secret information as ransom, but will Nelson...

Nelson and Crane are dismayed when an egotistical, publicity-seeking scientist is given command of the Seaview...

The Seaview travels to Scotland via a secret, natural underground conduit to investigate the mystery of the...

While investigating the loss of an American submarine, Crane and Nelson are captured by foreign scientists who...

The crew is joined by Captain Adams, the soul survivor of an ill-fated missile launch, in search of the...

Nelson is stranded aboard a life raft with the ex-premier of a hostile foreign power who carries vital...

The crew of the Seaview is called to investigate an undersea laboratory where scientists are surgically...

A strange experiment designed to speed up evolution goes horribly awry, and an enormous protoplasm threatens...

Crane is brainwashed by enemy agents, and his new mission is to deactivate certain strategic undersea missiles...

Commander Crane is sent along as a mere observer as the Seaview embarks on her first computer-controlled,...

A mad art connoisseur seizes control of the Seaview and pirates Leonardo da Vinci's Mona Lisa from a French...

After returning from a mission in deep space, a lifelike robot is brought aboard the Seaview, but the crew...

An undersea earthquake exhumes hundreds of strange metallic capsules, and a powerful humanoid creature who...

When a mass-launching by a foreign power sets the U.S. on nuclear alert, the Seaview goes into a fail-safe...

After Nelson's experimental submarine is attacked by a giant jellyfish, tension mounts aboard the Seaview as...

Admiral Nelson is kidnapped from a plane during mid-flight and held on a remote island by Nazis who plan to...

The crew of the Seaview is entrusted to protect, and possibly save, the life of the president of the United...

The Seaview races to return a twelve-year-old prince to his homeland to assume the throne before the country...

A scientist enlists the aid of the Seaview and her crew after a giant whale destroys his ship.

A renowned meteorologist boards the Seaview to investigate the cause of unprecedented blizzards causing havoc...

The Seaview is tangled in a web of espionage as Nelson uncovers a plot to kill a defecting communist agent.

Captain Crane is captured while investigating a mysterious weapon used to destroy American aircraft.

The Seaview is trapped on the ocean's floor after being damaged by an explosion from a minefield.

Two Soviet scientists are rushed to disarm a defective atomic satellite which has crashed off the coast of...

The crew of the Seaview travels to the North Sea, where they must battle a sea monster and stop the evil...

Nelson and Crane venture to Antarctica, where they discover a lost world rampaged by dinosaurs.

When an extraterrestrial spaceship lands in the ocean, the Seaview is rendered helpless, and Nelson and the...

The Seaview is attacked by mysterious, bizarrely expanding plankton, the result of a research experiment gone...

When several crew members are kidnapped on a mission to rescue a Latin American president, Admiral Nelson must...

Panic grips the crew of the Seaview when an enemy agent releases a fear-causing gas into the ship's...

While investigating the disappearance of research ships in the Aegean, the Seaview is damaged by a bomb.