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.
Walter Sande
Lt. Red PenningtonRobert Barron
Henchman PrindleIron Eyes Cody
Native Henchman at Mill [Ch. 5]Wade Boteler
Mike SplendorHerbert Rawlinson
Admiral Warburton [Ch. 1]Edward Hearn
Lead Henchman at Mill [Ch. 5]John Litel
Spencer MerlinRay Teal
Gang Radioman Barker