1972 SEALAB 2020 S01E02 LOST

Sealab 2020 was a 1972 American animated television series produced by Hanna-Barbera Productions for NBC's Saturday morning lineup. The show was an action-adventure series with an educational and environmental theme, focusing on a deep-sea research complex.
Premise: The series was set in the year 2020 at an underwater base called the Challenger Sea Mount, located at the top of an underwater mountain. A crew of 250 scientist pioneers, including men, women, and children, lived there, working to explore the ocean's depths and protect marine life.
Airing: It aired from September 9 to December 2, 1972, for a total of 13 episodes during its initial run.
Themes: The show dealt with serious issues for a Saturday morning cartoon, such as environmental preservation, overcoming handicaps, and dealing with natural disasters like seaquakes and red tides.
Style: Created by Alex Toth, the show was known for its distinctive design and more serious, live-action-style scripts, avoiding the typical "comedy relief" characters common in other Hanna-Barbera shows of the era.
The voice cast included several well-known actors:
Captain Mike Murphy (voiced by John Stephenson)
Dr. Paul Williams (voiced by Ross Martin)
Hal Bryant (voiced by Jerry Dexter)
Gail Adams (voiced by Ann Jillian)
S1.E2 Lost Episode aired Sep 16, 1972
Ann Jillian in Sealab 2020 (1972)
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.
Writers: Peter Dixon, Fred Freiberger
Stars: Ross Martin, John Stephenson, Josh Albee