Sealab 2020
Season 1, Episode 9: The Deepest Dive
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Hal, Ed, and Gail plunge to the lowest depths of the ocean in a special crystal bell to plant a second seismographic signaling device after the first one mysteriously disappears.
All Episodes - Season 1
Episode 1
Deep Threat
Episode 2
Lost
Episode 3
Green Fever
Episode 4
The Singing Whale
Episode 5
The Shark Lover
Episode 6
The Basking Shark
Episode 7
Where Dangers Are Many
Episode 8
Backfire
Episode 9
The Deepest Dive
Episode 10
The Challenge
Episode 11
Collision of the Aquarius
Episode 12
The Capture
Episode 13
The Artic Story