Northern Pursuit (1943) - (Movie Clip) You Think This Is Cold?
End of the opening narration (by Lou Marcelle (as in Casablanca, 1942), impressive simulated submarine, emergence of Nazi spy von Keller (Helmut Dantine), and seemingly unrelated Canadian skullduggery between Wills (Gene Lockhart) and Dagor (Bernard Nedell), from Raoul Walsh's Northern Pursuit, 1943, starring Errol Flynn.