Isadora Duncan | Duncan Sandys | Arne Duncan | Duncan, British Columbia | Seymour Duncan | Sandy Duncan | Iain Duncan Smith | Duncan Hines | Duncan Edwards | John Duncan | Duncan MacLeod | Duncan | John Duncan (artist) | Adam Duncan | Raymond Duncan | Duncan Patterson | Duncan Hunter | Duncan Grant | Duncan B. Forrester | Arthur Duncan | Adam Duncan, 1st Viscount Duncan | William Duncan Strong | Mal Duncan | Duncan Sheik | Duncan Jones | Duncan Fletcher | Duncan Fallowell | Duncan Campbell Scott | Duncan Campbell | Big John Duncan |
Buck and his associates, J. Farrell MacDonald, Duncan Renaldo and June Duprez, thwart the Teutonic malefactors: the villainous Nazi Dr. Lang (Arno Frey) and his portly accomplice Henry Gratz (Dan Seymour).