14 installments were made (aired as part of the anthology series Teatr Telewizji), with the two main characters, the protagonist, Abwehr Hauptmann Hans Kloss, and his key antagonist, SS-Obersturmführer Hermann Brunner, portrayed respectively by actors Stanisław Mikulski and Emil Karewicz.
The popularity of the play led to the creation of the TV series; Mikulski and Karewicz returned to portray Kloss and Brunner.
Both the character of Hans Kloss, and that of Max von Stierlitz, the protagonist of the similarly themed Russian TV series Seventeen Moments of Spring, were allegedly inspired by the real-life exploits of Nikolai Kuznetsov, who had successfully infiltrated Nazi armed forces under the guise of a German officer.
20 volumes of the comic book were released, some of which were direct adaptations of the TV series, while others contained original storylines.
The final volume of the comic book series expanded the show's story further, by having Kloss track down Nazi fugitives in Switzerland, shortly after the war.