Given the chance to live in a simulated underwater home for a month, a scientist convinces his family to take advantage of the offer. Once the family agrees to move in, underwater mayhem occurs!
Fred Miller
Tony Randall
Vivian Miller
Janet Leigh
Mel Cheever
Ken Berry
Nate Ashbury
Roddy McDowall
Myrtle Ruth
Charlotte Rae
Harold Webster
Richard Dreyfuss
T.R. Hollister
Jim Backus
Lorrie Miller
Kay Cole
Marvin Webster
Lou Wagner
Tommie Miller
Gary Tigerman
Jonah
Arnold Stang
Adm. Sheridan
Bruce Gordon
Dr. Wells
Lee Meredith
Sonarman
Harvey Lembeck
Alan Briggs
Frank Schuller
Mrs. Webster
Henny Backus
Mr. Webster
Bud Hoey
Reilly
Pat Henning
Philo
Jay Laskay
Chief Petty Officer
Charles G. Martin
Captain
Frank Logan
Radioman
Andy Jarrell
Secretary
Lora Kaye
Himself
Merv Griffin