Air date: 1972-09-09

Runtime: min

An earthquake spells danger for Sealab when the recurring mass of shock waves ruptures exposed canisters of radioactive waste.

Air date: 1972-09-16

Runtime: min

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.

Air date: 1972-09-23

Runtime: min

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.

Air date: 1972-09-30

Runtime: min

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.

Air date: 1972-10-07

Runtime: min

The entire Sealab complex is threatened by an increasing buildup of aggressive sharks in the area.

Air date: 1972-10-14

Runtime: min

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.

Air date: 1972-10-21

Runtime: min

Ed, Gail, and Hal become "muckrakers" when ocean waters around Sealab become blanketed with layers of loosened silt

Air date: 1972-10-28

Runtime: min

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.

Air date: 1972-11-04

Runtime: min

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.

Air date: 1972-11-11

Runtime: min

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.

Air date: 1972-11-18

Runtime: min

Human complications make dealing with the mechanical ones more difficult when cargo sub "Aquarius" crashes into Seamount and endangers the Sealab complex.

Air date: 1972-11-25

Runtime: min

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.

Air date: 1972-12-02

Runtime: min

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.