Season 1
13 episodes · Sep 9, 1972
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S1E1Deep Threat
Sep 9, 1972An earthquake spells danger for Sealab when the recurring mass of shock waves ruptures exposed canisters of radioactive waste.
S1E2Lost
Sep 16, 1972An 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.
S1E3Green Fever
Sep 23, 1972A red alert is signaled after a supply ship's concrete mooring, cast off during a hurricane, unwittingly strikes Sealab's control dome and splits a major section of the shell.
S1E4The Singing Whale
Sep 30, 1972A new world opens up for Roger Cummings, a disabled boy whose father is doing research at Sealab, when Bobby befriends him and teaches him how to dive.
S1E5The Shark Lover
Oct 7, 1972The entire Sealab complex is threatened by an increasing buildup of aggressive sharks in the area.
S1E6The Basking Shark
Oct 14, 1972When 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.
S1E7Where Dangers Are Many
Oct 21, 1972Ed, Gail, and Hal become "muckrakers" when ocean waters around Sealab become blanketed with layers of loosened silt
S1E8Backfire
Oct 28, 1972Ed considers resigning from Sealab after Dr. Williams grants permission to a submarine geologist to use explosives on Seamount for the purpose of oil exploration.
S1E9The Deepest Dive
Nov 4, 1972Hal, 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.
S1E10The Challenge
Nov 11, 1972An archaeologist enlists the aid of Hal, Ed, and Gail in removing ancient Mayan gold artifacts buried in the hold of a vessel sunk during WWI.
S1E11Collision of the Aquarius
Nov 18, 1972Human complications make dealing with the mechanical ones more difficult when cargo sub "Aquarius" crashes into Seamount and endangers the Sealab complex.
S1E12The Capture
Nov 25, 1972Although 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.
- S1E13
The Arctic Story
Dec 2, 1972The crew of Sealab ventures into the frozen Arctic to rescue two scientists who have been trapped by a blizzard while on a scientific expedition.