The Spy Ring
- Adventure
- Crime
- Drama
- Mystery
- Romance
1/8/1938
61
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.
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- Writer: