#1 | 09.09.1972Episode 1 (Deep Threat)
An earthquake spells danger for Sealab when the recurring mass of shock waves ruptures exposed canisters of radioactive waste.
#2 | 16.09.1972Episode 2 (Lost)
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.
#3 | 23.09.1972Episode 3 (Green Fever)
A 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.
#4 | 30.09.1972Episode 4 (The Singing Whale)
A 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.
#5 | 07.10.1972Episode 5 (The Shark Lover)
The entire Sealab complex is threatened by an increasing buildup of aggressive sharks in the area.
#6 | 14.10.1972Episode 6 (The Basking Shark)
When 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.
#7 | 21.10.1972Episode 7 (Where Dangers Are Many)
Ed, Gail, and Hal become "muckrakers" when ocean waters around Sealab become blanketed with layers of loosened silt
#8 | 28.10.1972Episode 8 (Backfire)
Ed considers resigning from Sealab after Dr. Williams grants permission to a submarine geologist to use explosives on Seamount for the purpose of oil exploration.
#9 | 04.11.1972Episode 9 (The Deepest Dive)
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.
#10 | 11.11.1972Episode 10 (The Challenge)
An 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.
#11 | 18.11.1972Episode 11 (Collision of the Aquarius)
Human complications make dealing with the mechanical ones more difficult when cargo sub "Aquarius" crashes into Seamount and endangers the Sealab complex.
#12 | 25.11.1972Episode 12 (The Capture)
Although 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.
#13 | 02.12.1972Episode 13 (The Artic Story)
The crew of Sealab ventures into the frozen Arctic to rescue two scientists who have been trapped by a blizzard while on a scientific expedition.
#14Episode 14 (S.O.S.- Sealab Ocean Signal)
#15Episode 15 (Utopia of Cassidy)