Chet Douglas

An engineer builds the world's first underwater city by using a team of crack frogmen to assemble the pre-fabricated parts and cells of the under water honey comb. A powerful undersea current cuts away the ocean floor beneath the city but the engineer vows to build a new underwater city. Starring William Lundigan and Julie Adams.

An engineer, a psychologist and several other disparate types take part in an experiment to see if people can live for extended periods of time in a city built under the ocean.