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The Secret of the Submarine
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A brilliant naval engineer invents a revolutionary new submarine capable of incredible underwater endurance. Foreign agents plot to steal the blueprints for this decisive weapon. The inventor's daughter and a brave navy officer must protect the secret, leading to adventures involving espionage and underwater sabotage.
Details
- Director
- George L. Sargent
- Released
- 22 May 1916
- Country
- United States
- Language
- English
- Runtime
- 360 min