15. Utopia of Cassidy

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14. S.O.S.- Sealab Ocean Signal

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13. The Artic Story

1972 - Season 1

The crew of Sealab ventures into the frozen Arctic to rescue two scientists who have been trapped by a blizzard while on a scientific expedition.

12. The Capture

1972 - Season 1

Although the Sealab crew doesn't like helping Mr. Harlan trap two animals from every species on the Seamount for a new aquarium, they carry out the task because of orders.

11. Collision of the Aquarius

1972 - Season 1

Human complications make dealing with the mechanical ones more difficult when cargo sub "Aquarius" crashes into Seamount and endangers the Sealab complex.

10. The Challenge

1972 - Season 1

The Sealab team meet Alex, an archaeologist who has dedicated the last 7 years to finding the sunken ship 'Viking', which sunk over 100 years ago. It's rumored that the ship was carrying some aztec treasures. Alex's brother Chuck is very excited by the discovery, and his excitement is getting in the way. Sealab follows rules and guidelines that guarantee safety, but prevent Chuck from finding the treasure faster. Alex is willing to cut his losses if lives could be lost, but Chuck will not let the last 7 years of his brother's life be for nothing...

9. The Deepest Dive

1972 - Season 1

The crew of Sealab are testing a new submersible vehicle called the ""Crystal Ball"", which is made out of mostly glass and is supposed to be better than conventional submersibles and dive deeper. They are given a mission to place a seismograph unit at the bottom of a deep part of the sea, but for some reason the unit stops functioning. They go back out with a second replacement seismograph unit and realize that a giant squid had taken the first unit and used it for material for its rock home. The squit catches the Crystal Ball and the crew is stuck trying to escape from it's grasp. They eventually get free and the new seismograph unit works.

8. Backfire

1972 - Season 1

Sealab members are out trying to capture an electric manta ray when they see some strange figures who they figure out are there drilling for oil, with Sealab's permission but without the crew's knowledge. They attempt to try to get the men relocate the oil drilling to another field miles away from sealab but the drillers refuse. Then a tsunami hits and their oil drilling operation is destroyed, the episode is called Backfire because if they would have moved the drilling operation they would have been fine :)

7. Where Dangers Are Many

1972 - Season 1

Ed, Gail, and Hal become "muckrakers" when ocean waters around Sealab become blanketed with layers of loosened silt.

6. The Basking Shark

1972 - Season 1

When a space probe loses its parachute during reentry and plummets out of sight into the ocean's depths, the staff of Sealab is called on to locate it.

5. The Shark Lover

1972 - Season 1

The entire Sealab complex is threatened by an increasing buildup of aggressive sharks in the area.

4. The Singing Whale

1972 - Season 1

A new world opens up for Roger Cummings, a crippled boy whose father is doing research at Sealab, when Booby befriends him and teaches him how to dive.

3. Green Fever

1972 - Season 1

The crew is in trouble! An anchor hit sealab and its starting to flood and air is running out! how will they ever fix this!

2. Lost

1972 - Season 1

An approaching red tide has more than the fish in a panic - the murky oceanic flux, which initiates a process of oxygen depleting, could cut off the life support system of Sealab.

1. Deep Threat

1972 - Season 1

An earthquake spells danger for Sealab when the recurring mass of shock waves ruptures exposed canisters of radioactive waste.