London, May 1914. Europe is close to the First World War. Richard Hannay, a Scotsman raised in Rhodesia is living in London, and finds American Franklin Scudder at his door. Scudder is a photographer and free-lance spy and has information about a plot by the German spy ring, the Black Stone, to steal the British plans for war. Hannay later finds Scudder dead in his flat and decides he must carry o...