In a wartime thriller, enemy agents secretly infiltrate and sabotage crucial military deliveries. The discovery of a hobo's body with a $50,000 money belt and a distinctive tattoo leads Brass to impersonate the deceased to uncover his mission. As Steve Coe, he infiltrates a group of saboteurs in California, but his cover is nearly blown when the hobo's wife appears. With Gabby's timely intervention, Brass learns his assignment: to infiltrate the USN airship Mason, which is testing a top-secret Inertia Projector, and destroy it.
Murder in the Air
Detectives Brass and Gabby uncover a sinister plot to spread anarchy, prompting them to take drastic measures to expose the truth.
