Białowieża Forest - in this forest you can see Europe as it was thousands of years ago. The only place in the world where the bison still lives together with the lynx, wolf, beaver and deer. The last part of the film tells the story of transience. Its heroes are scavengers, rot eaters, all those small organisms that make the "bottom" of the forest a large, constantly working laboratory. Nothing goes to waste here. Bacteria break down organic matter that larger animals do not use into simple organic compounds that flow into the soil with water. They will feed a new generation of forest plants. Every death carries the seed of new life. Organic matter today is litter, tomorrow a hepatica or a butterfly, the day after tomorrow an eagle. Our great-grandparents understood and worshipped the forest as best they could. It was like that for many years, but slowly man began to take more and more from the forest, giving nothing in return.