This is a feature-length compilation of three short episodes taken from a TV series called 'Colonel March of Scotland Yard' (1954-56, 26 episodes) starring Boris Karloff as Colonel March, head of Scotland Yard's Department D.3, otherwise known as The Bureau of Queer Complaints.
During World War I, young Londoner Tom Grattan is sent to live with relatives in rural Yorkshire, where he becomes involved in espionage, sabotage, and other wartime adventures with local friends, facing threats like spies and German POWs.
