Counterfeit bills are being printed in Canada and shipped across the border hidden in blocks of ice. When the counterfeiters force engraver Bronson to make a new plate, he inscribes a tiny help message on it. Renfrew catches a henchman who has one of the new bills. A magnifying glass lets him read the message and he heads out alone to round up the counterfeiters.
Arthur Millett, Bob Terry, Buck Morgan, Carol Hughes, Chief Thundercloud, Dave O'Brien, Dickie Jones, Donald Reed, Dwight Frye, Earl Douglas, Forrest Taylor, Francis Walker, Herbert Corthell, James Newill, Kenneth Harlan, Lightning, Marin Sais, Otto Hoffman, William Austin, William Gould, William Royle
