Ellery Richards (Edward Earle), racing magnate, informs Mark MacArthur (Paul Kelly), head of the State Racing Commission detectives, that a ring of bookmakers and gangsters are in town betting heavily on the Richards' entry, Red Roger, and getting tremendous odds because the horse isn't conceded a chance. Richards also shows Mark that the horse occupying Red Roger's stall is a ringer. After questioning bookmaker Soapy Connor (John Tyrrell), Mark learns that the boss gambler is Larry Mann (Robert Emmett O'Connor.) He tells Mann that he intends to put an end to the plan by "scratching" the fake horse. Mann assures him he will not do that because he has kidnapped Mark's secretary Betty Lindale (Jacqueline Wells.) Mark says he will back off, but secretly continues the investigation with the help of his aide, Joe Lavery (George McKay.) They learn, through a cast of the fake horse's bite marks, that the horse is rally one named "Billy G" that belongs to a reputable owner named Weston (C. Montague Shaw.) With the race day drawing near, and suspecting that Mann, whom he knows is an ex-police officer, has some hold on Weston, he arrests Franey Forrester (Ray Bennett), a Mann henchman, then visits Weston to tell him there is a warrant out for his arrest also. Weston, admitting his role, tells Mark that Mann is blackmailing him because he once killed a woman in a car accident. Mark places Weston under police guard and then confronts Mann. He tell him that Weston and Forrester have skipped town. Beaten, Mann offers to release Betty, for his own freedom. Written by Les Adams

In the small American town of Orton Creek, David Farmer is accidentally killed by Don Curran, son of town tyrant Will Curran, during a fraternity initiation. The frat boys frame electronic parts salesman Frank Govers for hit-and-run but determined newcomer Sheriff Ralph Baker and his love interest Jo Westlake seek the truth. Govers and girlfriend Lee Ann Hadley hide in a hunting cabin and are captured by prison escapees Mick August and Merlin Wells (who is tricked by Govers into electrocuting himself). August tries to claim the bounty on Govers from Will Curran but Sheriff Baker is only one step behind. Written by Kris Heidenstrom