Nattens helt was released in the year 1941。Nattens helt is also called as All Through the Night, Poprzez noc, Mystikos praktor, Kuoleman lasti, Kalabalik i högkvarteret, Gangsterrazzia, Balas Contra a Gestapo, Agenten der Nacht, A través de la noche, Échec à la Gestapo。
Broadway gambler Gloves Donahue wants to find who killed the baker of his favorite cheesecake. He sees nightclub singer Leda Hamilton leaving the bakery. When her boss Marty's partner Joe is murdered, Leda and her accompanist Pepi disappear. It turns out that beneath all the mystery is a gang of Nazi operatives planning to blow up a battleship in New York harbor.