Mere hours after his confrontation with Sheriff Cain and Deputy Cincinnati, Beckett fights off yet another vicious attack with the help of a shotgun-toting friend. When word comes that another one of Cain's sons - one of the meanest killers alive - may be on his trail, Beckett agrees to partner up with his new acquaintance on his journey to Colorado. Meanwhile, Zebediah Cain stands over his father's corpse struggling to keep his rage under control. He's been told a mountain man is responsible for the death of his father, his brothers and his best friend. Zebediah decides to send his right-hand man - a gunman and tracker called Robarge - after the killer with instructions to bring him back alive. With his body battered and broken, Beckett drags himself over a thousand miles to Durango only to face off against one of the deadliest men he has ever encountered.