The unit travels to Salem Town for an annual witch celebration, but an unexpected disturbance throws the proceedings into chaos. Tally wonders if she made the right choic ...

Set in an alternate America where witches ended their persecution over 300 years ago by cutting a deal with the burgeoning government to fight for their country, the seri ...

Corpsman Mallory's 4th Dimension Machine causes Captain Crane to kill Admiral Nelson, but did he really? A hunted Crane tries to prevent the event from happening. ...

Nelson is told the Seaview could be destroyed while carrying a top secret defense weapon but he has to determine if Captain Crane is an impostor. ...

While investigating the destruction of the fleet by a flying saucer, Nelson and Kowalski are captured by aliens. One of the aliens offers help to the Seaview crew to stop ...

Investigating why the world's oceans are rising, the Seaview finds a race of Frost Men at the Polar Cap who are increasing the temperature and they want the submarines' r ...

The Seaview investigates why part of the Italian coast has become overrun with jungle growth. Meanwhile new crewman Keeler has 3 miniature silver faced men grow to human ...

When Crane tests a new atmosphere to deal with extreme pressures, he turns into a Man Beast. Nelson races the clock to find a cure for Crane. ...

The Seaview and an intelligence expert who is more than he seems, try to find a group that is blackmailing the world's nations for gold bullion. The submarine encounters ...

The Seaview rescues two scientist from a climate control project at the South Pole but something else is on the ship on a killing spree. The Seaview has to shut down the ...

Crane receives a Mayday from the Seaview and finds no one on board except a UFO expert. The crew re-appears and announces they are going to fire nuclear missiles at Washi ...

A lobster man arrives in a space craft claiming to be a friend but in reality he wants one of the nuclear rods to cause an explosion thus paving the way for an invasion. ...

The Seaview is sent to stop a warhead on the ocean floor from detonating. But a leprechaun wants it to go off. So he tries to stop them. But his good twin brother tries t ...

The original Blackbeard takes over some of the Seaview crew including Kowalski to blow up a ship carrying King Solomon's Golden Throne. The remaining crew try to find a w ...

While trying to find the cause of some underwater pressure blasts, the Seaview encounters a race of Amphibians and Kowalski is transformed into one of them. ...

While trying to stop a leaking nuclear missile, Nelson undergoes a personality change which endangers not only the Seaview, but the 11th Fleet. ...

The crew of the Seaview encounter Mr. Pem who can control time. Pem sends Nelson back in time to force the Admiral to let Pem use the reactor to power his device. ...

An alien plant takes over Admiral Nelson in a plan to turn the Seaview into a giant greenhouse where it can take over the world. ...

Captain Crane is attacked in the Flying Sub while looking for a mysterious sub pen. The Seaview's rescue attempts are hampered by a spy pretending to be one of the crew m ...

A man named Alpha from 2823 sends 2 Collectors to bring Nelson to his time to add the Admiral to his collection of military officers. Chief Sharkey goes to the future to ...

A scientist friend of Nelson has developed a device to control a rare white ape. The scientist's jealous assistant causes the beast to kill the scientist and the ape runs ...

Admiral Nelson and Captain Crane are shocked to see a scientist shot to death during a live televised news conference viewed from the Nelson Institute. Especially shockin ...

When a top secret Neutron Bomb begins leaking radiation, Seaview crew men begin disappearing and those who haven't begin seeing things. The Seaview is racing the clock to ...

Aliens from the planet Centaur bring a capsule containing Commander Morton to Venus. They want to keep earth from invading their planet and kidnap Captain Crane in an att ...

When four capital ships vanish, Admiral Nelson and Commander Van Wyck are sent to investigate. They find an island where Nelson removes a dagger from a skeleton which hap ...

A puppeteer comes on board to entertain the crew. But it is later revealed that his puppets are alive and they plan to take over the sub. That's when they replace the cre ...

The Seaview is sent to stop an active volcano from erupting and causing a catastrophe. Accompanying them is Dr. Turner who's suppose to help them. But it turns out he has ...

The Seaview investigates a strange cloud that seems to be the source of immense destruction around the world. The world has only 24 hours to live unless Seaview can crack ...

The Seaview is tasked with moving a series of crates supposed to contain statues dating from the time of Atlantis. Something far more sinister is in the crates and Capt C ...

The Seaview is following up reports of a strange island being sighted when it discovers a strange egg on the ocean floor. Everyone is puzzled and excited by the find unti ...

While on patrol the Seaview is attacked and badly damaged by an unknown submarine. As the crew frantically work to save the vessel and themselves an even greater menace a ...

The Seaview is tasked with attempting a space probe launch from sea. To avoid interference a skeleton crew is manning the ship. While en route the ship encounters a stran ...