Voyage to the Bottom of the Sea
Season 2, Episode 8: Leviathan
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Nelson and crew are invited to a marine scientist's undersea lab for a visit but there is giant sea life in the way.
All Episodes - Season 2
Episode 1
Jonah and the Whale
Episode 2
Time Bomb
Episode 3
...And Five of Us Are Left
Episode 4
The Cyborg
Episode 5
Escape from Venice
Episode 6
The Left-Handed Man
Episode 7
The Deadliest Game
Episode 8
Leviathan
Episode 9
The Peacemaker
Episode 10
The Silent Saboteurs
Episode 11
The X Factor
Episode 12
The Machines Strike Back
Episode 13
The Monster from Outer Space
Episode 14
Terror on Dinosaur Island
Episode 15
Killers of the Deep
Episode 16
Deadly Creature Below!
Episode 17
The Phantom Strikes
Episode 18
The Sky's On Fire
Episode 19
Graveyard of Fear
Episode 20
The Shape of Doom
Episode 21
Dead Men's Doubloons
Episode 22
The Death Ship
Episode 23
The Monster's Web
Episode 24
The Menfish
Episode 25
The Mechanical Man
Episode 26
The Return of the Phantom