Secret Service agents try to solve the theft of treasury banknote plates.

When a rival newspaper publisher complains to his captain about possible collusion between himself and reporter Torchy Blane on scooping her rivals in crime news reporting, Det. Lt. Steve McBride…

Brass Bancroft and his sidekick Gabby Watters are recruited onto the secret service and go undercover to crack a ruthless gang that smuggles illegal aliens.