A boy is accidentally locked in a bank vault. With less than 10 hours of oxygen left in the vault, it becomes a race to save the boy.

Robert Beatty
as Pete Dawson

Lee Patterson
as Colin Walker

Betty McDowall
as Lucille Walker

Vincent Winter
as The Boy

Robert Ayres
as Insp. Andrews

Alan Gifford
as George Foster

Larry Cross
as Reporter

Sandra Francis
as Evelyn Webb

Gordon Tanner
as Dr. Hewitson

Victor Wood
as Howard Zeeder