Karwowski, son of a pre-war colonel, is transferred from the West to Poland with the task of assembling a spy and diversion network. The task seems to be easy. However, after landing in Poland, it turns out that nobody wants to cooperate with him. Karwowski's "100% reliable" contacts with potential collaborators turn out to be completely outdated.

• Wytwórnia Filmów Fabularnych w Łodzi
• Jan Świderski
• Adam Mularczyk
• Wanda Łuczycka
• Andrzej Hrydzewicz
• Lidia Korsakówna
• Tadeusz Janczar
• Bronisław Dardziński
• Tadeusz Woźniak