 With US G-Men hot on their trail, gangsters "Dapper Dan" Geary (Harry Worth) and Jo-Jo Regan (Paul Fix) escape into the Elks River Forest Preserve in northwest Canada, whre another criminal, "Frenchie" Le Farge (Julian Rivero) is doing his scene and scenery-chewing best to become Canada s top public enemy. At the Elks River Barricks, RCMP Sergeant Jim McGregor (Kermit Maynard) renews his friendship with Doris McCloud (Joan Barclay), the daughter of his superior office Inspector McCloud (George Cleveland. ) Doris is invited to meet the noted American author Stephen Norris, but it is not Norris who occupies the lonely cabin in the forest, but "Dapper Dan" who, with a false beard, is an exact double of the writer, and he and Jo-Jo are holding the real Norris prisoner. The American gangsters team up with Le Farge, an old cellmate of Jo-Jo s. Dan hires Doris as a stenographer and moves his operation into the Inn as a plan to get next to something interesting, other than Doris. He learns that Jim is to meet a lumber company paymaster and excort him and a $5,000 payroll to the mill. Le Farge decides to steal the payroll on his own but Jim outwits him. That night, the Inn throws a grand ball masque and even Le Farge and his henchies (Dick Curtis, Eddie Phillips and Roger Williams) show up disguised as Mexican bandits. Jim has lifted some fingerprints from a glass held by Geary and the net begins to tighten on the gangsters and outlaws.