Young James Mann came from Texas to find his missing uncle in the lawless Indian Territory. Then the boy's father came after him. Now they've earned the wrath of the vicious McCoy-Maxwell gang, who are about to pull off their most savage attack. But the Manns of Texas have a secret weapon: Deputy Marshal Jackson Sixpersons, who carried an oddity -- a 12-gauge, lever-action Winchester shotgun. Soon Sixpersons will blow a hole in the outlaw gang. And when the gun smoke clears, a boy must pick up the gun and use it like a man... to kill.