The trouble started when Guy Doniphan decided to move to Colorado and set up Square D ranch His wife hated the new country from the start and her hatred was soon justified when she was brutally raped by some Indians and lost her unborn child Then the Roan Creek cattle were driven onto Square D rangeland, presenting a challenge that had to be answered Guy and his elder son Floyd tried to find a peaceful solution but Cashman, brought up in the wake of his mother's bitterness, had other ideas Bloody violence followed and the family torn apart There was bitter death and tragic loss before peace was restored