Dušek is not in his own skin. Regulars can't get the reason for his problems out of him. Only Zatloukal can do that. Someone sent an anonymous message to the innkeeper and wants a tip. But Jonáš accidentally gets the letter. After a while, he brings his friend - a certain prof. Acorn. After inspecting the building, he states that it will be necessary to carry out an organized resistance by force. Several guests and regulars join him. Žalud conducts basic training, after which two men come to the pub looking for Dušek. They want to talk in private - Dušek takes them to the kitchen, where the defenders immobilize the attackers. When the police arrive, things take an unexpected turn.