Hans Kloss. Stawka większa niż śmierć

Original movie broken down into a 5 episode series. Hans Kloss - a Polish intelligence agent code-named J-23 - finds a treasure stolen by the Nazis. Kloss's old friend Hermann Brunner is involved in the plot. Kloss, trying to thwart the enemy's plans, tries to save the beautiful Elza from the conflagration of war, for whom he will be ready to risk the safety of his mission.