Renfrew of the Royal Mounted

The story unfolds in a remote lakeside region of Canada, centered around Deer Lake and the Totem Pole Lodge. The Deer River area provides a rugged wilderness backdrop for the counterfeit operation and the Mounties' pursuit of criminals.

The movie is set during the summer of 1937, a period when cross-border crime was a significant concern for law enforcement. This era was shaped by criminal networks that exploited remote border regions for smuggling counterfeit money.

The film explores three core themes: justice, as the RCMP pursues a counterfeit ring; loss, shown through the murder of Constable MacDonald and its impact on his family; and duty, embodied by Renfrew's courageous investigation and protection of civilians.

Sgt. Renfrew is a seasoned Royal Canadian Mounted Police officer who leads the investigation against the counterfeit gang. He is portrayed as resourceful, courageous, and protective of civilians, culminating in a dramatic raid that brings the criminals to justice.

Constable MacDonald is a diligent RCMP officer who discovers counterfeit money hidden in trout before being killed by the gang's henchman Pierre. His death serves as the catalyst for Renfrew's investigation and highlights the personal costs of law enforcement duty.

Totem Pole Lodge is a remote lakeside establishment run by George Poulis that serves as the headquarters for the counterfeit operation. The lodge becomes the focal point for the climax where Renfrew orchestrates a daring raid to arrest the criminals.

The killing of Constable MacDonald deeply impacts his family, particularly his young son Tommy. The film shows the community and Renfrew rallying to support them, weaving personal sorrow together with the ongoing pursuit of justice.

Lightning is Renfrew's loyal German Shepherd police dog who assists in tracking criminals throughout the film. The canine companion adds both practical assistance in the chase and reinforces the theme of loyal partnership between the Mounties and their service animals.

Virginia Bronson is a nineteen-year-old American woman who becomes entangled in the counterfeit case due to her complicated past with her father James Bronson, a former counterfeiter. She develops a connection with Renfrew and represents the innocent civilians drawn into the criminal network.

The main antagonists are George Poulis, the Greek owner of Totem Pole Lodge who runs the counterfeit operation, and Pierre, a henchman who carries out violence including murdering Constable MacDonald. Both are eventually confronted and arrested by Renfrew.

Despite its criminal plot, the film maintains a light and adventurous tone typical of 1930s serials. It features cheerful scenes like picnics and a barbecue contest, balanced with moments of suspense and a romantic subplot, resulting in a straightforward narrative with a happy resolution.