A British policeman (John Gregson) tries to find a rich man's (Alec Clunes) son before a kidnapper's (Robert Shaw) time bomb blows.

A serial killer is murdering women in the Whitechapel district of London. An American policeman is brought in to help Scotland Yard solve the case.

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.