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32 Episodes 1964 - 1965
Episode 1
Mon, Sep 14, 196452 mins
In exactly eleven days there will be a terrible polar earthquake. The resulting tidal wave could destroy civilization. The Seaview is dispatched for damage control. Certain enemy forces also go there to upset the Seaview's mission.

Episode 2
Mon, Sep 21, 196452 mins
A research vessel vanishes during a routine mission near an island off Greece. Another ship is sent to investigate, and also disappears without a trace. Now the Seaview pays a visit. They find nothing, but a local fisherman claims to know of a 'city beneath the sea'.

Episode 3
Mon, Sep 28, 196452 mins
The Seaview continues the secret underwater explorations that another sub was on when it mysteriously disappeared.

Episode 4
Mon, Oct 5, 196452 mins
The Seaview arrives at an ocean rendezvous to pick up a Latin-American president, but the ship it meets is empty.

Episode 5
Mon, Oct 12, 196452 mins
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 mysteriously disappears, the Seaview is sent in to investigate.

Episode 6
Mon, Oct 19, 196452 mins
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 another ship is destroyed investigating it, the Seaview is ordered to check it out.

Episode 7
Mon, Oct 26, 196452 mins
Nine months ago a diving bell was lost with four men aboard during an Antarctic expedition. One man, Jason Kemp, is found alive. He is suffering from amnesia and can't remember anything after the dive. Nelson thinks he may be suffering from shock as he rambles on about a tropical land filled with monsters. Kemp and Carol Denning, an underwater photographer and the daughter of one of the missing men, joins the Seaview and returns to the place where the bell was lost. Their bell suffers the same fate and Nelson, Crane, Kemp, and Carol Denning somehow find themselves washed up on a tropical beach in the frozen Antarctic.

Episode 8
Mon, Nov 2, 196452 mins
In the fjords of a small Norwegian fishing village, a small boat manned by three drunken fishermen is attacked by what appears to be a giant sea monster. When Admiral Nelson hears of this, he is fascinated by it and takes the Seaview to Norway to investigate and interview the one survivor. The villagers are not happy to see them and reluctant to talk and answer questions. Someone is so desperate to keep their silence that the survivor is murdered before he could talk. With no one willing to talk, Nelson is preparing to leave when they discover evidence of giant sea life. Nelson is determined to solve this mystery.

Episode 9
Mon, Nov 9, 196452 mins
The Soviets have launched a rocket carrying a new satellite to be placed in orbit around the Earth. Everything is proceeding normally when they lose control of the rocket and their power to abort it. The rocket with its nuclear pile will fall back to Earth and splashdown near the San Franciscan coast. The Seaview is ordered to pick up two Russian missile experts and find the rocket and disarm the nuclear pile before detonation.

Episode 10
Mon, Nov 16, 196452 mins
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 inadvertently allows it to move into a derelict mine field. The sub becomes entangled and attempts to free itself, but an explosion disables the sub and sends it to the bottom. With the crew running out of air the diving bell is their only hope.

Episode 11
Mon, Nov 23, 196452 mins
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 the beam is powerful enough to seize all the metal objects aboard Seaview herself, and begin dragging her relentlessly to her destruction. The only chance is to briefly neutralize the magnetic force and send a small party out to sabotage the ray at the source. The extremely well-guarded source...

Episode 12
Mon, Nov 30, 196452 mins
A very important Soviet official is defecting to the USA with his daughter. They are scheduled to be picked up in Indonesia by the Seaview. On the last leg of their escape, the official is wounded and the daughter is captured. With the official recovering in the sick bay, the Seaview now must either leave the daughter behind or make a rescue attempt. Time is running out, and dangerous agents are snooping around everywhere.

Episode 13
Mon, Dec 7, 196452 mins
Winter in summer? Snow has struck the United States as far south as Florida, and Nelson knows why: somehow, the Gulf Stream has shifted east, permitting colder temperatures. Climatologist Dr. Melton can confirm Nelson's theory, so Nelson tries to persuade him to board the Seaview. But the sinister Cregar can't allow Nelson to uncover the truth, so he has Melton kidnapped and brainwashed - to kill Nelson! Nelson must evade attempts on his life while discovering why the Gulf Stream shifted position and figuring out what to do about it.

Episode 14
Mon, Dec 14, 196452 mins
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 largest creature to exist! He wants metabolic data, including heart rate; to get it, he harpoons the whale with a special sensor. The enraged animal destroys the Bryce boat, killing Walter's son Jimmy and crippling Walter. After recovering, Walter seeks out Nelson and Seaview to continue his research - but does he have an ulterior motive?

Episode 15
Mon, Dec 21, 196452 mins
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 about everything. He has advisers, but one of them may be trying to kill him, to finish off the royal line. Nelson and Seaview must get the prince back home so he may take the throne and prevent a coup from leaving an unfriendly government in power. Fortunately, a mysterious sailor, Old John, appears along their way and helps the young prince. But exactly who is Old John?

Episode 16
Mon, Dec 28, 196452 mins
President Henry McNeil has fallen and seriously injured his head. That imperils an upcoming peace conference; even a whiff of the president's incapacity may doom it, as he is the one man who can hold it together. Everything depends on a delicate operation to relieve the swelling in his brain. To keep that operation a secret, the Navy co-opts the Seaview. But enemies of the conference have learned of the president's ill health, and manage to smuggle an agent aboard Seaview with orders to kill McNeil!

Episode 17
Mon, Jan 4, 196552 mins
Admiral Nelson is kidnapped by a group of German survivors of WW II who dream of establishing the Fourth Reich. They plan to use Nelson, along with a group of other kidnapped scientists, to bring this about.

Episode 18
Mon, Jan 11, 196552 mins
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 battle for survival while being presumed lost at sea by the navy.

Episode 19
Mon, Jan 18, 196552 mins
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.

Episode 20
Mon, Jan 25, 196552 mins
An undersea earthquake exhumes hundreds of strange metallic capsules, and a powerful humanoid creature who could destroy mankind is restored to life after millions of years in suspended animation.

Episode 21
Mon, Feb 1, 196552 mins
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 can.

Episode 22
Mon, Feb 8, 196552 mins
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.

Episode 23
Mon, Feb 15, 196552 mins
The Seaview is selected to be converted to a totally automatic ship controlled by a central computer. The mission goes well till Capt. Crane, the only person aboard the sub, realizes he may not be as alone as he thought.

Episode 24
Mon, Feb 22, 196552 mins
Crane is brainwashed to sabotage an important national defense mission which is being monitored by the national intelligence agency.

Episode 25
Mon, Mar 1, 196552 mins
The Seaview is sent on a mission that will take into to some of the most dangerous waters in the world for submarines. Adding to the tension one of the officers lost an elder brother on a similar mission years before.

Episode 26
Mon, Mar 8, 196552 mins
Admiral Nelson becomes involved in a project to develop an amphibian adaption for man. He encounters conflict with the two chief scientists, rather than being cautious, both scientist want to rush ahead with research. Nelson worries what the emotional toll of the experiments may be.

Episode 27
Mon, Mar 15, 196552 mins
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 the information before deciding if the mission worth the risk.

Episode 28
Mon, Mar 22, 196552 mins
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 ray source which along with Adams' actions pose a threat to safety.

Episode 29
Mon, Mar 29, 196552 mins
The Seaview is sent to investigate the wreck of the submarine Angler. They uncover evidence of strange behavior minutes before the loss, and Nelson sees this change in behavior as the secret to unlocking what happened to the Angler.

Episode 30
Mon, Apr 5, 196552 mins
Nelson is to meet a scientist working on a secret project at Loch Ness. When he arrives he discovers the scientist is dead. A series of strange events leads Nelson to believe there may be a way for a submarine to enter the Loch.

Episode 31
Mon, Apr 12, 196552 mins
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, along with his assistant all successfully make the first tests in a diving bell. Then it is time for the Seaview to follow suit. Only then does the real fun begin!

Episode 32
Mon, Apr 19, 196552 mins
Admiral Nelson is deeply concerned when he hears his sister has been kidnapped. He soon discovers she was not the real target and he is being placed in a position to have to go against everything he ever stood for.
