A strong-willed young woman comes to Fort Gannon in search of her fiancé, Harry Sinclair, whom she learns is a alcoholic accused of cowardice. She refuses to believe that her betrothed is past redemption and begs Jonathan to help him to recover. There efforts are nearly thwarted when Sinclair's housemate, a ne'er-do-well trapper with no other friends, convinces him to take one last drink.