The Spy Ring
#Plotters Gamble Death for Anti-Aircraft Secrets!
Two American-army officers are working on a new type of machine-gun for anti-aircraft warfare, when one of them is murdered. The other vows to get the spies that are after the invention and avenge his friend's death.
- Genre: Adventure, Crime, Drama, Mystery, Romance
- Director: Joseph H. Lewis
- Cast: William Hall, Jane Wyman, Esther Ralston, Robert Warwick, Leon Ames
- Country: United States