In a small town in Texas five ex-mercenaries reunite when one of their number, Red, half Comanche, half Texan, is threatened. Presidential candidate Senator O'Hara likes to keep his town whiter than snow and everybody firmly in their place and he's taken a dislike to Red. The town's sheriff won't risk his job by helping so it's down to Johnny Silver and his band of comrades to sort out the matter. The resultant attacks escalate from a simple poisoning of the ranch's water supply, through frightening off the workers, to a full-scale war with a fifty-strong gang of bikers. And pulling the strings is their most formidable foe yet - a professional assassin, the Killer in Black. Are Johnny's team still strong enough to take on the challenges posed by the unknown enemy? Or have they finally met their match?