As Britain edges closer to World War I, Sherlock Holmes is persuaded back from retirement to help fight against the Germans. The British Prime Minister calls on his expertise to infiltrate a German spy ring and capture a notorious undercover operative, Von Bork.
Sir Arthur Ignatius Conan Doyle was a British writer best known for his detective fiction featuring the character Sherlock Holmes. Doyle was a prolific writer; his non-Sherlockian works include fantasy and science fiction stories about Professor Challenger and humorous stories about the Napoleonic soldier Brigadier Gerard, as well as plays, romances, poetry, non-fiction and historical novels.