Based on the newspaper feature entitled "Don Winslow of the Navy" owned and copyrighted by Frank V. Martinek

Don Winslow (titular hero of the serial "Don Winslow of the Navy") is reassigned to the United States Coast Guard, to guard the coast against saboteurs and sneak attacks.

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Main Cast: Don Terry, Walter Sande, Elyse Knox, Philip Ahn, June Duprez, Edgar Dearing, Lionel Royce, Henry Victor, Charles Wagenheim, Nestor Paiva

Directors: Ray Taylor, Lewis D. Collins

Writers: Griffin Jay, Paul Huston, George H. Plympton

Editors: Alvin Todd, Irving Birnbaum, Edgar Zane

Cinematographers: William A. Sickner, John W. Boyle

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