This direct sequel to The Lawmen sees Deputy United States Marshal Jesse Bronson sent north of the line into Canada, to assist with the capture of two highly dangerous American outlaws. Brin Carson and Vern Hatcher have joined up with a gang of ruthless Metis half-breeds led by Gabriel Dumont. Their joint aim is to lucratively target the Canadian Pacific Railroad, who have not experienced any train robberies before. To his surprise, Bronson discovers that he is again to be partnered with Samuel Bairstow of the Northwest Mounted Police. And thanks to Dumont's brutality, Bairstow has a personal score to settle that could jeopardise the whole mission.