1 :01x01 - Eleven Days to Zero

Eleven Days To Zero was originally filmed in color, though the first year of Voyage To The Bottom Of The Sea would be aired in black and white. This fast-paced pilot episode featured the Seaview in a race against time to thwart impending tidal waves which would drown most of the civilized world. All of the main elements of the series would be introduced, including Admiral Nelson's scientific expertise, and Captain Crane's adept command of the vessel. This episode just HAD to be good, as it was needed to market the potential series to ABC executives. It worked. When the original screening was finished, the ABC brass gave it a standing ovation! A fan favorite, this is the one that started it all!

2 :01x02 - The City Beneath the Sea

While investigating the disappearance of research ships in the Aegean, the Seaview is damaged by a bomb. Captain Crane goes ashore, and pretends to be a diver for hire. The Captain meets an ex-diver, now a mute due to a tragic accident, who claims to have seen a "city beneath the sea". Crane gets hired by the "bad guy", but his cover is soon blown. He is taken prisoner and nearly loses his life.

3 :01x03 - The Fear-Makers

The Polidor, another ship launched by the Nelson Oceanographic Institute, is exploring the depths to determine how practical life in the deep water may be. In contact with the Admiral, the crew becomes confused and then incoherent, and the ship slips below the safe line and is lost. Seaview continues with the tests. Unknown to the already stressed crew, one of the visiting psychologists aboard is an enemy agent who has released a fear-causing gas into the air system - the same gas ultimately responsible for the loss of the Polidor. As Seaview plunges into the depths a dangerous panic starts to spread.

4 :01x04 - The Mist Of Silence

President Fuentes tries to escape his tiny country to the United States, evading assassins. Seaview is assigned the task of rendezvousing with his yacht to retrieve him, but when they arrive, the ship is heeled over and deserted. Crane leads a prize crew to recover the ship, but it runs into a strange mist and Seaview loses contact. It's all part of a complex plan engineered by General d'Alverez and his Oriental sponsors to embarrass the United States. A plan that will also leave Crane and his prize crew dead unless Nelson can enter the tiny country and rescue them, against tall odds.

5 :01x05 - The Price of Doom

A husband and wife Antarctic research team is killed by an experiment on plankton gone wild. Seaview arrives to investigate and take plankton samples. Soon the submarine is in danger of succumbing to the horrible, slimy growth. Nelson, Crane and crew face another problem: one of the three scientists on board the sub is an enemy agent.

6 :01x06 - The Sky is Falling

An alien spaceship lands in the ocean, and Seaview is sent to investigate. Although Seaview is powerless in the vicinity of their ship, the aliens seem friendly, and Nelson manages to open negotiations. The military authorities, however, have other ideas, and Seaview may be in as much danger from human interference as from the aliens.

7 :01x07 - Turn Back the Clock

A lush, tropical, verdant paradise in the South Pole? Living dinosaurs? Such fanciful ideas must surely be the ravings of a madman. Or perhaps not, as Admiral Nelson soon discovers. The question is, will he and Crane survive their trip to a lost world?

8 :01x08 - The Village of Guilt

A sea monster kills three villagers in a Norwegian fjord. One man survives. Seaview arrives to investigate. Nelson and Crane are met with hostility from the locals and find the survivor has died. Nelson does his best to make sure the "sea monster" doesn't destroy Seaview.

9 :01x09 - Hot Line

A Soviet satellite has crashed into the sea and its nuclear reactor must be disarmed before it causes a disaster. Two Soviet scientists come aboard Seaview to carry out the work -- but one of them is an imposter.

10 :01x10 - Submarine Sunk Here

Damaged by an explosion from an old mine field, Seaview takes a dive to the ocean floor. Listing dangerously, running out of oxygen, having to deal with fire and flood, the crew can do nothing but wait for help. But will help arrive in time? The one machine that could possibly reach them has a serious navigational problem that could prevent it from evading the minefield on its way to Seaview!

11 :01x11 - The Magnus Beam

An unnamed Arabian Red Sea power has deployed a weapon capable of knocking American U-2 spy planes out of the sky. The government assigns the Seaview to investigate. Captain Crane goes undercover, but the secret police are waiting and kill his contact. Worse, General Gamal is aware of the Seaview and has plans to deal with it. To survive, the crew must change the mission from reconnaissance to sabotage. The matter is further complicated when Major Amadi approaches Crane to request asylum in exchange for help destroying the weapon. Crane reluctantly agrees - but is Amadi really a defector interested in peace?

12 :01x12 - No Way Out

Nelson and Crane go undercover in Jakarta to retrieve a defector, Koslow, whose brain holds information about key Pacific Rim Communist spies - he used to be a spymaster! But the man is injured in the attempt, and his lover is left behind. He won't speak to Parker, waiting for him on Seaview, until he is reunited with his lover Anna. But Parker is not what he appears to be. And did Koslow train his lover too well?

13 :01x13 - The Blizzard Makers

In blizzard-wracked Florida, Nelson contacts a meteorologist who may be able to help explain the strange weather conditions. That night, however, the scientist is abducted, and "programmed" to kill Nelson. When his first attempt fails, he comes aboard Seaview when she sails to investigate the source of the problem, and continues his efforts.

14 :01x14 - The Ghost of Moby Dick

Dr. Walter Bryce, an old friend of Nelson's, comes aboard Seaview to continue his research into the giant whale that destroyed his ship, crippling him and killing his son. His real motives, however, have more to do with vengeance than science, and Crane becomes concerned that the Admiral is caught up in his friend's obsession.

15 :01x15 - Long Live the King

When the King of a small but friendly nation is assassinated, Seaview is assigned to take the young Crown Prince back home to assume his throne. Neither Nelson (who gets turned out of his own cabin) nor Crane are used to handling children. Help arrives in the form of a mysterious flute-playing old man who befriends the boy after he is picked up at sea.

16 :01x16 - Hail to the Chief

Injured in a fall, the President of the United States is in desperate need of surgery -- and the operation must be kept secret. Naturally, Seaview is chosen as the best place for the operation. An enemy agent, taking the place of the doctor who would have used a radiological device on the President, will attempt to kill the Commander-in-Chief with a deadly ray. Will she be discovered in time to save the President?

17 :01x17 - The Last Battle

Audaciously kidnapped from a plane in mid-air, Nelson finds himself one of a group of captives on a remote island, waiting to be used as pawn in a plot by Nazis still trying to conquer the world. He's one of several scientists who will be expected to work for the new Fourth Reich! It doesn't take them long to build a radio and signal to Seaview -- but maybe that was exactly what the bad guys expected him to do!

18 :01x18 - Mutiny

When an experimental submarine is lost to a giant jellyfish, Nelson is the only survivor. Rescued after days on a makeshift raft, he is eager to get back to Seaview and take up the hunt for the creature. Also aboard is Nelson's old friend, "old Navy" Admiral Jiggs Starke, who has his own ideas about how Seaview should be run. As the tension aboard mounts, it becomes clear that Nelson hasn't completely recovered from his ordeal, and the Captain is driven to desperate measures.

19 :01x19 - Doomsday

A nuclear alert puts an end to the crew's celebration of crossing the Equator. Deployment to the firing location in enemy waters endangers the ship. Then the alert ends - a false alarm caused by miscommunication - but one of the missiles will not disarm! The Seaview must find a way to rid itself of the deadly cargo without violating treaties or destroying herself. Add in a delicate surgery that really needs a specialist, and a member of the crew that cannot do his duty, and Nelson has his hands full!

20 :01x20 - The Invaders

Who are the invaders? An undersea quake uncovers mysterious metallic capsules, which have been hidden for millions of years. In one capsule brought aboard Seaview is the strange and powerful Zar, who claims his people lived on earth eons ago. He wants the rest of the capsules retrieved and all his people revived. Nelson and Crane must decide whether Zar and his technologically sophisticated people can co-exist with humans. And Zar's blood contains a deadly virus, normal for his people, but lethal to humans. The slightest injury to him could spell doom for the human race!

21 :01x21 - The Indestructible Man

Seaview is assigned the task of recovering a space problem, returned to earth from a deep space mission with valuable data. Its passenger is a specially designed robot equipped to collect data the same way a human would. The robot's store of information would thus be a roadmap describing what man would encounter, and helping him prepare. But something happened to the robot out there in space, and now it seems determined to destroy the submarine and all aboard her!

22 :01x22 - The Buccaneer

How do you get enough men to commandeer the Seaview inside the highly secure Nelson Institute of Marine Research? You make the Institute want those men inside! The mysterious Logan, a master planner, knows how to do that - but taking over Seaview is only the first part of his audacious plan. If he succeeds, he'll possess the world's greatest art treasure, the Mona Lisa, while Nelson and his men endure a grim fate.

23 :01x23 - The Human Computer

As part of a military exercise, a breakthrough computer has been installed aboard Seaview. The inventor claims this machine can run the ship entirely. Captain Crane is alone aboard ship, a token crewman so that the ship is not regarded as a derelict under maritime law. Or is he alone? An enemy agent has somehow snuck aboard, with a tape to reprogram the computer; if his mission succeeds, a hostile foreign power will gain control of Seaview long enough to steal the secrets of the machine!

24 :01x24 - The Saboteur

Captain Crane has been kidnapped, but no one knows this - because the "People's Republic" that holds him intends to return him! But when they do, he'll secretly be working for them, the victim of advanced electronic brainwashing. His job is to compromise the advanced missile system the United States is prepared to deploy - a system that will maintain the balance of power - and to do it in a way that leaves U. S. military authorities believing their advanced weapons are still functional!

25 :01x25 - Cradle of the Deep

An attempt to greatly speed up evolution proves fatal for its developer, Dr. Benton. His colleague Dr. Janus proceeds with the experiment, this time hoping to use matter from the "cradle of life" deep beneath the sea - the place where evolution began. The area is geologically unstable, a "graveyard" for submarines. But Seaview manages to retrieve a quantity of the material regardless. Then Dr. Janus accelerates it, and the problems really begin: Seaview is suddenly trapped with an unreliable crew and a large - and rapidly growing larger - new lifeform aboard.

26 :01x26 - The Amphibians

Dr. Winslow has created a process - a series of injections and surgeries - that should turn a man into an amphibian, part of a project to help mankind exploit the sea. His colleague Dr. Jenkins agrees to be the first subject, but what neither man realizes is the subtle effect this therapy has upon the thinking processes of those transformed. Soon they begin kidnapping skin divers and transforming them into amphibians. And they have plans for the Seaview and her crew...

27 :01x27 - The Exile

He who lives by the sword, dies by the sword. A lesson for Alexi Brynov, deposed premier of the autocratic People's Republic (a frequent source of problems for Seaview's crew). But Brynov has an audacious plan that depends on Seaview. He must sell Admiral Nelson the idea that in exchange for Brynov's secrets, the United States should grant him political refugee status. But that is only the beginning of the plan. If he succeeds, Brynov will return to power on a tidal wave of worldwide bloodshed.

28 :01x28 - The Creature

An ultrasonic force destroys an island missile testing facility, killing twenty men and leading command to distrust the capabilities of the lone survivor, Captain Adams, the commanding officer. Adams boards Seaview determined to track down the source of the destructive sound - but in the process reveals that maybe command is right about his poor judgment. His efforts to solve the problem imperil Seaview and everyone aboard her.

29 :01x29 - The Enemies

The submarine Angler is lost with all hands. COMSUBPAC asks Seaview to find out what happened and recover any survivors. It's clear from the nature of the accident that there are no survivors, so to investigate, Seaview works backwards along her trail, soon enough discovering an ominous island. There, Nelson and Crane encounter old adversies the People's Republic. And there, the two long-time friends become the bitterest of enemies.

30 :01x30 - The Secret of the Loch

Admiral Nelson has accepted an assignment to deliver classified material to a secret research facility located under the waters of Loch Ness in Scotland. When he arrives, he learns from the sole survivor, MacDougall, that the Loch Ness Monster has destroyed the facility. MacDougall is prepared to accept the material and carry on the work, but Nelson needs to learn the fate of the scientists. Following MacDougall's guidance, he takes Seaview through a deep underwater channel and into the Loch.

31 :01x31 - The Condemned

Seaview hosts Admiral Falk and his assistant Archer, who have developed a method to enable submarines to dive far below their ordinary crush depth. If it works, Seaview will be the first submarine to reach the deepest bottom of the ocean, and Falk will be famous forever. But if it doesn't, the sub and her crew will be lost. Seaview makes the descent, and then discovers that the bottom of the ocean hosts different forms of life - and that maybe Falk isn't the scientist everyone thinks he is.

32 :01x32 - The Traitor

Agents of a mysterious foreign power (for once, not the People's Republic - or, at least, not that they're admitting) abduct Nelson's sister Edith. He must supply them with a map that details the precise location of defensive missile silos located on the sea bottom, or they will kill her. Will he sell out his country for his family? It appears he'll have no choice - but appearances may be deceiving.

33 :02x01 - Jonah and the Whale

After whales destroy a Soviet underwater laboratory, the Soviet Union sends scientists to join Seaview, hoping they can recover vital data from the wreckage, data needed to abate anticipated world hunger problems. But a whale migration interferes with the recovery effort, seriously damaging the diving bell and killing one of the Russians. The other insists on proceeding, so Nelson agrees – and another giant whale swallows them whole! Inside the bell, they can last for awhile, but can they last long enough for Seaview to send a team inside the behemoth to free them?

34 :02x02 - Time Bomb

Agents of a foreign power use a painless high-velocity hypospray to introduce unstable cesium into Admiral Nelson's bloodstream, where it will remain harmless until triggered by proximity to a nuclear reactor. The second phase of their plan involves luring Admiral Nelson to a Soviet research facility with false evidence that the Soviets have devised a new and powerful form of atomic explosive. When Nelson approaches to verify this, the nuclear reactors will activate the cesium, causing Nelson and the facility to explode, leading to a Soviet-American war from which these instigators will emerge the new rulers of the world.

35 :02x03 - ...And Five of Us Are Left

The discovery of a bottle containing a message leads the Navy to reopen the long closed case of the missing submarine Tetra, thought lost in the South Pacific near the end of World War II. A single survivor revealed that her captain's incompetence and cowardice had destroyed the boat; perhaps after nearly thirty years the Navy can have another account. For the note, written just over a hundred days ago, claims there are five survivors...

36 :02x04 - The Cyborg

In a castle in Falkonmatt, Switzerland is a very special laboratory where the half-invalid and completely mad genius Tabor Ulrich has devised cybernetic organisms indistinguishable from human beings. He has also devised a computer capable of downloading the contents of a human brain into its memory. With these tools he makes a perfect copy of Admiral Nelson, the first step in his plan to correct the world's flaws by placing its governments under the control of an array of his cyborgs. And if the world won't agree, he'll use his false Nelson and the Seaview's nuclear missiles to force compliance!

37 :02x05 - Escape from Venice

Captain Lee Crane has gone to Venice, apparently on vacation, but actually so an agent, Alicia, can can give him... singing lessons? A scientist named Leonetti sent tapes that describe a defense against a so-called ultimate weapon developed by the other side. But without the song Alicia has taught Crane the tapes are useless gibberish. Then the gondolier poling them through the canals knifes Alicia to death and makes it appear that Lee has committed the crime! Now Lee is on the run in a city closed off from the outside world and richly populated with enemy agents. Nelson must find a way to help his captain escape, for their friendship and for the safety of the world.

38 :02x06 - The Left-Handed Man

“Penfield must be stopped!” A deep undercover agent of the Office of Naval Intelligence tells Admiral Nelson this, adding that George W. Penfield must not become the Secretary of Defense. Nelson is incredulous; the charismatic Penfield seems destined for the post. Before the agent can submit his formal report, an assassin kills him. The next day, a woman appears in Nelson's office with the same message – and she's more convincing. She's Penfield's own daughter, and she claims she has evidence to support her case. Is Penfield really the charismatic leader everyone believes him to be? Or is his daughter right, and her father is a deadly danger to the United States?

39 :02x07 - The Deadliest Game

Seaview assists the the President in testing Deep Center, a command center located on the bottom of the ocean where it is impregnable to nuclear attack. From this secure base the President could run the military should enemies launch nuclear missiles. But Deep Center may not be as invulnerable as hoped. Shortly after the commander-in-chief's arrival a mysterious ray freezes all the electronics. And the only method of shutting down the now runaway nuclear reactor is a sabotaged circuit! This could be a prelude to attack... or it could be something even worse.

40 :02x08 - Leviathan

Deep oceanographer Dr. Anthony Sterling needs Seaview's help, but his is just one of many requests the Nelson Institute receives every day, and it isn't the most important. Admiral Nelson turns him down – until Sterling reveals that he has discoved a vent that he believes goes straight to the Earth's core. That is exactly the kind of unique research Seaview was built to handle, and Nelson boards her and travels there. But when he arrives, he discovers that the vent has discharged strange elements into the water, causing organisms to grow to enormous size.

41 :02x09 - The Peacemaker

Seaview surfaces in the frozen arctic so Nelson and Crane can witness the test firing of an enemy's newest weapon. Created by idealist Everett Lang, the milk carton sized device delivers a fireball twenty miles across. This "proton bomb", is supposed to restore a “balance of power”. But the enemy leader has other ideas. He orders Lang killed. Lang barely survives, and then contacts the United States, offering proton bomb technology in return for protection. Is his offer legitimate? Can the United States afford not to have this weapon? Complicating matters is the fact that the enemy has already built a device large enough to destroy the world. And... the physicist's idealism, which expresses itself as a scheme to pull the world's nuclear powers “back from the brink”.

42 :02x10 - The Silent Saboteurs

En route home, the Arcturus 3 space probe encounters a strange force field, loses control, and explodes! Intelligence soon realizes the capsule's instruments were bled of all data before the explosion, and even discoveres the general area where the field originated. The United States has lost data, a capsule, and two trained astronauts. Seaview draws the assignment to prevent further losses. To do this, they contact a resistance movement in the hostile nation that destroyed the probe. But two different people identify themselves as Li Cheng, the contact who can guide Seaview's team to the installation and help them destroy it. The first problem is deciding who to trust...

43 :02x11 - The X Factor

The “X Factor” is the final piece an enemy nation needs to complete the single greatest deterrent weapon ever built – a weapon that makes the H-bomb as obsolescent as a bow and arrow. Dr. Liscomb has that piece, so toy maker and spymaster Alexander Kaber has him kidnapped. He'll ship Liscomb to that enemy nation, where brainwashers are waiting to get the “X Factor” and much, much more. Liscomb's only hope is for Nelson and Seaview to discover where he's been taken and intercept him before he leaves the United States!

44 :02x12 - The Machines Strike Back

Three years ago, Harriman Nelson and a counterpart from an allied nation, Admiral Alex Halder, collaborated on an ambitious project: they built a fleet of robot defensive drones. Equipped with missiles, these unmanned vessels offer the United States and her allies a deterrent retaliatory strike capability. So when one of the drone ceases obeying transmitted commands and fires on New York, Nelson has a serious problem to solve...

45 :02x13 - The Monster from Outer Space

A space probe returns from Earth, but it bears a strange stowaway: a mysterious form of alien life that can hide by reducing its mass and volume to nearly zero. Seaview recovers the probe; Nelson and Sharkey take the scientific package from it to a nearby aircraft carrier. While they're away, the alien form expands, and begins to take control of Seaview and her crew. Nothing seems to stop it, until Nelson realizes that it must have a brain, and that means it may have a key weakness that he can exploit. It's a race against time; Nelson must kill the monster before Seaview reaches the mainland!

46 :02x14 - Terror on Dinosaur Island

47 :02x15 - Killers of the Deep

Admiral Nelson mans a damaged destroyer in a fight against a renegade submarine.

48 :02x16 - Deadly Creature Below!

49 :02x17 - The Phantom Strikes

50 :02x18 - The Sky's On Fire

51 :02x19 - Graveyard of Fear

52 :02x20 - The Shape of Doom

53 :02x21 - Dead Men's Doubloons

54 :02x22 - The Death Ship

55 :02x23 - The Monster's Web

56 :02x24 - The Menfish

57 :02x25 - The Mechanical Man

58 :02x26 - The Return of the Phantom

59 :03x01 - Monster from the Inferno

60 :03x02 - Werewolf

61 :03x03 - The Day the World Ended

62 :03x04 - Night of Terror

63 :03x05 - The Terrible Toys

64 :03x06 - Day of Evil

65 :03x07 - Deadly Waters

66 :03x08 - Thing from Inner Space

67 :03x09 - The Death Watch

68 :03x10 - Deadly Invasion

69 :03x11 - The Haunted Submarine

70 :03x12 - The Plant Man

71 :03x13 - The Lost Bomb

72 :03x14 - The Brand of the Beast

73 :03x15 - The Creature

74 :03x16 - Death from the Past

75 :03x17 - The Heat Monster

76 :03x18 - The Fossil Men

77 :03x19 - The Mermaid

78 :03x20 - The Mummy

79 :03x21 - Shadowman

80 :03x22 - No Escape from Death

81 :03x23 - Doomsday Island

82 :03x24 - The Wax Men

83 :03x25 - Deadly Cloud

84 :03x26 - Destroy Seaview

85 :04x01 - Fires of Death

86 :04x02 - The Deadly Dolls

87 :04x03 - Cave of the Dead

88 :04x04 - Journey with Fear

89 :04x05 - Sealed Orders

90 :04x06 - Man of Many Faces

91 :04x07 - Fatal Cargo

92 :04x08 - Time Lock

93 :04x09 - Rescue

94 :04x10 - Terror

95 :04x11 - A Time to Die

96 :04x12 - Blow Up

97 :04x13 - Deadly Amphibians

98 :04x14 - The Return of Blackbeard

99 :04x15 - Terrible Leprechaun

100 :04x16 - The Lobster Man

101 :04x17 - Nightmare

102 :04x18 - The Abominable Snowman

103 :04x19 - Secret of the Deep

104 :04x20 - Man-Beast

105 :04x21 - Savage Jungle

106 :04x22 - Flaming Ice

107 :04x23 - Attack

108 :04x24 - Edge of Doom

109 :04x25 - The Death Clock

110 :04x26 - No Way Back