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!
Tony Randall
as Fred Miller
Janet Leigh
as Vivian Miller
Ken Berry
as Mel Cheever
Roddy McDowall
as Nate Ashbury
Charlotte Rae
as Myrtle Ruth
Richard Dreyfuss
as Harold Webster
Jim Backus
as T.R. Hollister
Kay Cole
as Lorrie Miller
Lou Wagner
as Marvin Webster
Gary Tigerman
as Tommie Miller
Arnold Stang
as Jonah
Bruce Gordon
as Adm. Sheridan
