
"The Navy's ace Intelligence Officer...blasting spies and saboteurs to save a nation's vital lifeline!"
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.
Cmdr. Don Winslow

Mercedes Colby

Spencer Merlin

Lt. Red Pennington

Misty Gaye

Mike Splendor

John Blake

Paul Barsac

Henchman Corley

Henchman Spike

Seaman Chapman

Henchman Prindle

The Scorpion

Gang Radioman Barker

Lt. Cdr. Grady
Admiral Warburton [Ch. 1]

The CINCUS [Ch. 1]

Capt. Holding [Ch. 1]

Enemy Sub Capt. Tranker [Ch. 1]

Capt. Fairfield, of the "Batavia" [Chs. 1-2]
Tangita Jim [Chs. 2, 10]

Capt. Sanders, of the "Tarleton" [Chs. 3-4]
Saboteur Kramer [Chs. 3-4]

Lead Henchman at Mill [Ch. 5]

Native Henchman at Mill [Ch. 5]

Witch Doctor Koloka [Chs. 6-7]

Sub Capt. Jackson [Chs. 7, 9]
Sam Munn, henchman [Ch. 8]

Henchman Butch [Ch. 8]

Gang Chemist Taylor [Chs. 8-9]
Taylor's Lab Assistant [Ch. 8]
