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.

Top Cast

William LundiganBob Gage

Julie AdamsDr. Monica Powers

Roy RobertsTim Graham

Carl Benton ReidDr. Junius Halstead

Chet DouglasChuck Marlow

Paul DubovGeorge Burnett

Karen NorrisPhyllis Gatewood

Kathie BrowneDotty Steele