Admiral Nelson and a Soviet scientist are in a diving bell when the vessel is swallowed by a giant whale. With only 90 minutes of oxygen, Captain Crane, Kowalski, and Ril ...

The Chinese have developed a way to turn a human body into an intense bomb. They intend to infiltrate the Soviet Union and create a diplomatic incident that will draw the ...

A message is received from a US sub presumed sunk in the last months of WW2. The Seaview is sent to try and locate a cave that is mentioned in the message and to try and ...

Nelson is visiting a scientist and discovers that he has created cyborgs, human looking robots. When Nelson tries to leave, the scientists orders his cyborgs to detain hi ...

Captain Crane is in Venice to meet a secret agent when she is killed. It is believed she had knowledge of a new secret Soviet weapon, and how to combat it. Crane's missio ...

Admiral Nelson is contacted by a strange man claiming to be from the Office Of Naval Intelligence. He gives Nelson a cryptic message that Penfield is not to be allowed to ...

The President of the United States is visiting a new underwater installation when a power interruption freezes all communication. To complicate the situation they discove ...

A research team are taking measurements of an underwater eruption. They discover a fissure that appears to lead all the way to the Earth's core. While the discovery is ex ...

Nelson and the Seaview witness the detonation of a new bomb developed by the Chinese. No bigger than a milk carton it creates a blast 70 miles across. An American scienti ...

A manned probe is returning to Earth when it is suddenly caught in the grip of a strange force and destroyed. Investigations point to a secret Chinese installation being ...

Word comes through that Dr Liscomb has been kidnapped by a foreign agent posing as a toy importer. Liscomb has cracked the secret of the X factor, a new ingredient and ev ...

Admiral Nelson is under pressure when a drone sub system he pioneered malfunctions and fires three missiles at New York City. The race is on to establish what went wrong ...

In 1978, the first space probe to Saturn returns and the Seaview is sent to retrieve it. Despite their stringent decontamination procedures an alien life form survives an ...

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 ...

By air Nelson and Crane pursue a mysterious submarine stealing nuclear missiles. Their craft is shot down and Crane is captured. Nelson, recovered by a Navy destroyer, is ...

The Seaview rescues two men apparently lost at sea. They are actually escaped prisoners who try to take over the Seaview. The situation is complicated by the presence of ...

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 ...

A meteor storm ignites atmospheric gases in the southern hemisphere. Adm. Nelson believes one of the Seaview's missiles can extinguish it but someone on board is secretly ...

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 construction of an undersea canal is about to start with the Seaview tasked with placing the first charge, a 50 megaton nuclear bomb. But as it is being lowered an en ...

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