Nahanni Bordertown : Season 1 Episode 23

Clive's training officer arrives in Bordertown with his pregnant Indian wife, Nahanni. Driscoll had been shot in a skirmish with the U.S. Cavalry, who had apprehended Chief Sitting Bull from a reservation in Canada. Driscoll, determined to free Sitting Bull, had killed two of the soldiers, who follow him to Bordertown, seeking revenge.