Communist agents in Canada are spying on Dr. Carl Macklin, an atomic physicist whose knowledge they want to steal. To kidnap him, Eric Hartman, the party's top man in
Montreal, offers $100,000 to deported American criminal Joe Victor. Joe's former flame Joyce Geary is blackmailed into helping with the plan. Police inspector Leduc of the Royal Canadian Mounted Police investigates. A thug working for Victor kills the scientist's secretary after using her to gain information. Leduc is taken prisoner aboard a ship as Hartman and Victor attempt to take Dr. Macklin with them to Europe. Leduc pleads with Victor, who misses his native country, to do the right thing for and help stop the communists. A shootout ensues between Victor and Hartman and they kill each other. Joyce's innocence is proven to the satisfaction of Leduc and the law. ==Cast==