In occupied Silesia, resistance is organizing. In close contact with the miners and led by an engineer, a group of partisans prepare the sabotage of the steel combine. The going will be tough as the place is closely guarded by the Nazis. But despite a denunciation from a traitor and several violent deaths, they get going and the operation is a success. But the Red Army is approaching and now the coal production must not be sabotaged anymore. On the contrary, the partisans must prevent the Germans from destroying the steel mill and the coal mine...
| Actor | Role |
|---|---|
 Irena LaskowskaDanka | Danka |
 Helena BuczyńskaGustlikowa | Gustlikowa |
 Władysław HańczaEngineer Karol | Engineer Karol |
 Mieczysław SerwińskiHauptsturmführer Helmut Kirschke - Inspector | Hauptsturmführer Helmut Kirschke - Inspector |
 Tadeusz Burnatowicz"Raptus" | "Raptus" |
 Stanisław WinczewskiPaweł | Paweł |
| EEdmund BiernackiHanzel | Hanzel |
| LLudwik RuszkowskiManager | Manager |
 Bronisław DarskiJohann Steiner | Johann Steiner |
 Feliks ŻukowskiMichał Wontor | Michał Wontor |
| KKarol ChorzewskiMiner | Miner |
| MMarian DąbrowskiSS Officer | SS Officer |
| MMieczysław GielniewskiBathhouse Worker | Bathhouse Worker |
 Tadeusz ŁomnickiWiktor Tuszyński | Wiktor Tuszyński |
 Leon PietraszkiewiczNot listed | Not listed |
| JJózef PilarskiOld Worker | Old Worker |
| KKlemens PuchniewskiNot listed | Not listed |
 Zbigniew SkowrońskiWatchman | Watchman |
 Kazimierz WichniarzForeman | Foreman |
| WWacław ZwolińskiNot listed | Not listed |
 Jerzy KawalerowiczGerman Officer (uncredited) | German Officer (uncredited) |