Erskine and Colby lead the manhunt for escaped prisoner Arthur McBride. McBride is a genius and a ruthless, borderline psychopath and more than willing to kill to accomplish his means. The FBI men will follow a trail from Kansas to Chicago to Miami. The question is whether Erskine can corner his quarry before his next big job: robbing an armored car on its way from a race track.—Bill Koenig