Don Winslow of the Navy (1942)
A movie serial in 12 Chapters: US naval officer Don Winslow is given command of Tangita Island, near Pearl Harbor, where a ring of saboteurs is trying to destroy ships carrying supplies to the troops stationed in the islands and sabotage the war effort under orders from an unknown leader.
Directed by: Ford Beebe
Starring: Don Terry, Claire Dodd, John Litel, Walter Sande, Anne Nagel, Wade Boteler
Links: IMDb, Movie posters, Movie stills