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.
James Newill
as RCMP Sgt. Renfrew
Carol Hughes
as Virginia Bronson
William Royle
as George Poulis
Herbert Corthell
as James Bronson
Kenneth Harlan
as Roger 'Angel' Carroll
Dickie Jones
as Tommy MacDonald
Chief Thundercloud
as Indian henchman
William Austin
as Constable Holly
Donald Reed
as Constable MacDonald
Lightning the German Shepherd
as Lightning, Renfrew's Dog
