The long arm of the Mounted

A Royal Canadian Mounted sergeant undertakes undercover work across the international boundary to protect a strategic parcel of prairie that rustlers covet, riding a prized gray stallion and accompanied by a loyal hound. He collides with a young woman who has independently filed claim to the same section, forcing him to conceal his identity while investigating a widespread horse-stealing conspiracy. The narrative follows his efforts to gather proof, set traps, and confront outlaws through surveillance, ambushes, and legal maneuvers, producing revelations, personal danger, and a final reckoning that brings culprits to justice and settles contested claims.