
A gang of street boys foil a master crook who sends commands for robberies by cunningly altering a comic strip's wording each week, unknown to writer and printer. The first of the Ealing comedies.

Alastair Sim
Felix H. Wilkinson

Jack Warner
Nightingale

Valerie White
Rhona

Jack Lambert
Ford

Harry Fowler
Joe Kirby
Douglas Barr
Alec
Stanley Escane
Roy
Ian Dawson
Norman
Gerald Fox
Dicky
David Simpson
Arthur
Albert Hughes
Wally
John Hudson
Stan
David Knox
Dusty
Jeffrey Sirett
Bill
James Crabbe
Terry

Joan Dowling
Clarry

Frederick Piper
Mr. Kirby

Vida Hope
Mrs. Kirby
Heather Delaine
Dorrie Kirby
Paul Demel
Jago
Charles Crichton
T. E. B. Clarke
Released