The famous detective and his trusty side-kick, Tinker, are called in by the War Office to find some important papers that were stolen from a man killed during an air raid.

• Strand Film Company
• British National Films
• David Farrar
• Manning Whiley
• Dennis Arundell
• John Varley
• Betty Huntley-Wright
• Gordon McLeod
• Kathleen Harrison
• Cyril Smith