With an oath of vengeance on his lips -- and a pair of Colt .45s on his hips -- Pritchard sets off to find the trainwrecking fiend, whether it's really Jem Rupe or some copycat maniac. Either way, he'll have to ride the rails with some pretty deranged characters -- crooked railroad tycoons, ruthless bounty hunters, trigger-happy gunfighters -- before he reaches the end of the line. There's just one way to stop a mass-transit murderer . . . and that's dead in his tracks.