![The Spy Ring](https://i3.wp.com/image.tmdb.org/t/p/w185/qKZFS9AM4ynjiZobDemRFJgVrj.jpg)
Plot
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.
Writer | Francis Van Wyck Mason |
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Director | Joseph H. Lewis |
Actor | William Hall, Jane Wyman, Esther Ralston |
Country | United States of America |
Production | Universal Pictures |