A mother is looking for her missing child, with whom she lost contact while in a concentration camp. The film was completed in 1948, but it was banned from distribution by the government, until finally releasing in 1991.

A mother is looking for a missing child with whom she lost contact while in a concentration camp.

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...