The prophet Amos spoke in the name of the Lord during the oppressive rule of King Jeroboam II. Joab, a wealthy minister's son is mistaken for a poor man's son and taken away to be tortured.
Slip and Sach are working for a local newspaper as a reporter and photographer, respectively. Slip wants to get the goods on a local gambling ring that is fixing sporting events, so he and Sach go undercover to expose the ring.
After the discovery of two murders, Commissioner Chabrier, of the French secret services, is investigating the disappearance of plans affecting the national defense of the country robbed by a gang of international spies.
The third of the Monogram series based on Ham Fisher's "Joe Palooka" comic strip, opens with Knobby Walsh, the manager of Joe Palooka trying to talk his way out of a traffic citation, and the story leading to that point is told in flashback as narrated by Walsh.