Dr. John Bishop thought he'd seen his share of death on the battlefields of America's great Civil War. Then his quiet life was shattered when a gang of outlaws invaded his home, killed his family, and tortured him within an inch of his life. John Bishop's soul may have died that day, but his mangled body lived on. A beautiful Cheyenne named White Fox nursed him back to health - and a gunsmith outfitted him with a special shotgun rig where his left arm used to be. A strap across one shoulder fires it, while the chip on the other fuels his quest for vengeance. Now the man called Shotgun rides deep into the Colorado winter to find and kill the men who murdered everything he once held dear. The hunt will lead him straight to the heart of a fiendish criminal conspiracy - and force him to confront the violent legacy of his own outlaw brother.