Jan Kačer became known primarily as an actor, but he also took up film directing several times - not very successfully. Based on someone else's script, he made a committed, building story: it tells the story of an experienced engineer who is commissioned to assemble a team of specialists for engineering the peaceful use of atomic energy. However, the explanation of human dilemmas is too flat and proclamatory, as is the image of Ostrava's industrial environment; the heroes are thinking about one thing: the proper completion of the assigned task...