A police dog helps to track down two payroll robbers. The film begins with a parked car with drawn curtains inside of which three gangsters (played by Walter Miller, Richard Alexander and Skeets Noyes) and silently waiting for their prey. When a large closed vehicle approaches the car with gangsters it crashes and the gangsters quickly rush to the vehicle, kill the chauffeur and two guards and steal a satchel with 100,000 dollars.
Last Rin Tin Tin film produced by Warner Bros. Now it is believed to be lost.