THE WORLD'S MIGHTIEST SECRET SERVICE COMES OUT SHOOTING AGAINST HISTORY'S DEADLIEST SPIES!...Flaming Adventures inside the spy rings!...Blazing Action with the Secret Service!
THIS IS A SECRET CODE - BWROEEYGNSEAEFNMATE - Decoded it means BEWARE OF ENEMY AGENTS
SMASH SPIES WITH THE SECRET SERVICE! Super-secret Super-serial Super-thrills!
Added Attraction! - "HOW TO CODE AND DECODE SECRET WRITINGS" by Henry Lysing
SECRET U.S. AGENTS FIGHT FIENDISH NAZI PLOTTERS! Blood-tingling thrills...in an action-packed chapter play hit!
Thrill Again to Spy-Smasher's Biggest Chase!
Timeliest of Columbia Serials!
Uncle Sam's secret agents fight fiendish Nazi spies!
UNCLE SAM'S SECRET AGENTS SMASH SPIES IN A BLOOD TINGLING SERIAL!