While operating over the remains of a sunken 16th century pirate ship, the Seaview encounters a reincarnation of its dead captain. ...

The Seaview is returning to the location of a sunken ship to recover its secret cargo. There are a number of other sunken ships in the area, and the thing responsible for ...

The Seaview finds a sunken German U-boat while mapping the ocean floor. Sunk during WWI in the north Atlantic, it is now somehow in the south Pacific. Its captain boards ...

Admiral Nelson and Chief Starkey are marooned on an island with prehistoric creatures. The Seaview is trying to rescue them but they have an undersea monster of their own ...

This episode involves the testing of a new air mixture that will allow a submarine to go to the bottom of the sea literally! A brash, news hogging, admiral and his aide, ...

When a missile is destroyed by apparent ultrasonic sound, the Seaview investigates with Adams, the mentally unstable launch commander, on board and finds an giant manta r ...

The premier of the People's Republic, with some very valuable information, wants to defect to the US. The Seaview is sent to pick him up, but Nelson must first evaluate t ...

The Seaview is seized by a man calling himself the Buccaneer. As audacious as his plan is, it is only a small piece in a much larger plan. ...

The Seaview is tasked with recovering a returned deep space probe. On board the probe is a robot as sophisticated as a man, and capable of experiencing everything a human ...

The Seaview is on exercises when a series of signals are received indicating the USA is at war and they are to prepare for launch of all missiles. ...

Admiral Nelson is aboard a new submarine when it is destroyed by a giant jellyfish. Nelson and the first officer are the only survivors. The two men begin a desperate bat ...

The assassination of a king means Prince Ang receives an early promotion. The new king is just a boy, and has a lot to learn about ruling. In fact, he has a lot to learn ...

Whale specialist Walter Bryce has taken his family to sea in pursuit of the largest living creature ever to exist, an immense whale twice the size of the previously known ...

Seaview is called on to investigate the mysterious crashes of several U-2 spy planes. They discover the cause is a magnetic beam of immense power. Then they discover that ...

Chip Morton and Curley Jones are in New London making repairs on the diving bell's guidance system. At the same time a skirmish in the control room of the Seaview sails d ...

A U. F. O. has been spotted flying around the United States, terrifying people and violating every airspace regulation in the book. It falls into the sea, which, after an ...

A scientist on a research facility in Antarctica discovers a new form of sea plankton that turns monstrously large and aggressive if exposed to heat. After the scientist ...