After a quayside mix-up with the Italian family of his fiancée, Able Seaman Knocker White finds himself literally left holding the baby. Unable to return it before his ship sails he enlists the help of best mate Puncher Roberts to smuggle the child aboard. But babies are surprisingly demanding and gradually the whole crew is drawn into helping keep it fed and washed - and undiscovered. Even so, the officers above deck start to puzzle over the increasingly strange happenings on board.
John Mills
as Puncher Roberts
Richard Attenborough
as Knocker White
André Morell
as Marshal
Bryan Forbes
as Prof. Evans
Michael Hordern
as Capt. Hugh
Ernest Clark
as Cmdr. Geoffrey Digby
Harry Locke
as CPO Blades
Lionel Jeffries
as George
John Le Mesurier
as The Marshal’s Aide
Ferdy Mayne
as Interpreter
Kenneth Griffith
as Sub-Lieutenant
Gordon Jackson
as Harry
