Someone blew the cover of US Marshal Bren 'Bronco' Madigan and he was beaten almost to death by Cody Tuttle's men. As ever, nobody could prove Tuttle's guilt; he always had an unshakable alibi and plenty of respected people to back him up.Madigan knew he would get him one day, but that day seemed a long way off. Then a two-bit outlaw help up a train that was carrying a strong box that belonged to Tuttle and suddenly the chance to bring him to justice looked promising ... until the outlaw, McCall, started behaving out of character. And that was when it got really complicated as the gun-smoke thickened and the killers were turned loose.