The next episode sees Elizabeth being whisked away to the enigmatic island of Felicitos, where she finds herself among dozens of fellow scientists, all held captive by the enigmatic Dr. Smith.
Aired: Sep 22, 1977A survivor from the lost city of Atlantis resurfaces, struggling to adapt to ...
Aired: Oct 13, 1977A marine scientist's world is shattered after uncovering the shocking truth t...
Aired: Oct 18, 1977A space probe crashes into the ocean, and the Cetacean team, led by Mark, qui...
Aired: Oct 25, 1977The next episode sees Elizabeth being whisked away to the enigmatic island of...
Aired: Nov 1, 1977A catastrophic rise in global water levels is underway, as Mr. Schubert offer...
Aired: Nov 8, 1977A mysterious threat lurks deep beneath the Navy's fleet, while the Cetacean's...
Aired: Nov 22, 1977A sudden citywide blackout sets the stage for a thrilling adventure as Schube...
Aired: Dec 6, 1977A catastrophic underwater vortex threatens the planet's water supply, prompti...
Aired: Dec 13, 1977In the next episode, Mark takes drastic measures to prevent a genetically mod...
Aired: Apr 18, 1978Mark's search for answers beneath the ocean's surface takes an unexpected det...
11. Crystal Water, Sudden Death
Aired: Apr 25, 1978A mysterious underwater forcefield uncovers a hidden world where air-breathin...
Aired: May 2, 1978A sudden seaquake unleashes a hidden fissure, transporting Mark to the world ...
Aired: Jun 6, 1978Accidental ingestion of a mysterious enzyme from a rock fossil leads to chaos...
Main Cast
Guest Starring
