Sherlock Holmes and the Secret Weapon 1942 ‧ Thriller/Mystery ‧ 1h 20m

When a Swiss inventor of an advanced bomb sight disappears, leaving only a set of clues to the location of his invention, Sherlock and Watson must find him before Sherlock's old nemesis Moriarty does.
Initial release: December 25, 1942
Director: Roy William Neill
Running time: 1h 20m
Story by: Sir Arthur Conan Doyle
Adapted from: The Adventure of the Dancing Men
Distributed by: Universal Pictures