This film was one of a handful of movies that were all released around the same time that dealt with the Norwegian Resistance in World War II. The movies include They Raid by Night (1942) aka "The Commandos Have Landed"; Commandos Strike at Dawn (1942); and Edge of Darkness (1943).
The film was completed by director Charles Vidor after Dorothy Arzner became ill.
Italian censorship visa # 1798 delivered on 12 February 1947.