Imperialist spies try to disrupt and stop production in a large steelworks.
as Wanda Bugajówna
as Szymon Bugaj
as Antoni Przewłocki
as Józek Wieniarz
as Banasiowa
as Wielicki
as Borucki "Jarząb"
as Bugajowa
as Colonel Hopkins
as UB Lieutenant
as UB Lieutenant
as Henisz
as Śliwik
as Wicuś
as Zocha
as Party Secretary
as Buffet Lady
as Party Member
as UB Colonel
as Steel Mill Director
as Worker
as Girl in a Club
as Wanda's Friend
as Worker
as Group Member (uncredited)
