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...

Wild Swine is actually an ironic name for the great search operation of Prague's criminologists, who in a tangle of criminal activity of various kinds were digging around like wild swine before they managed to solve a complicated case. The story takes place in a variety of social spheres, from the Roma people to the world of Prague prostitutes and bakshellers to prominent people.

The popular Moravanka brass band performs at the fair. Vasek Pivoňka, the bandleader of the local brass band Kulatěnky, which broke up, decides to put the band back together. The village musicians are sceptical at first, but later they start rehearsing with vigour. Standa, a Prague resident who is working in a pig farm to cure his nerves, helps them to organise the concert. He really likes Evica Kocourková, but her father keeps an eye on her. Young Šišák tries to charm the teacher Olina. Before the performance can begin, the band must succeed before the cultural committee. However, they fail to do so. The disappointed musicians play for themselves at the station and suddenly they are successful. Standa comes up with an idea how to push Kulatěnka through without the permission of the commission. A concert of Moravanka is being prepared in nearby Nechvalin.