Unscrupulous in business and unpleasant in communication, businessman Arkady Petrovich agrees to the excursion into the past offered to him by scientists, where he ends up in the body of another person. He is followed by his employee - the head of the security service, Sergei. A businessman finds himself in the shoes of a medieval baker, destined to die from the plague, and a security guard in the body of a young bastard. Serious tests await the heroes. Firstly, the baker is revealed to have homicidal tendencies, and the city guard is looking for him, and the bastard is about to be hanged. Secondly, for some reason the heroes cannot return back and are forced to look for a means of subsistence in the medieval world during the Hundred Years War. They join the army of the Prince of Wales, who is undertaking another chevauché, that is, a devastating raid, on French territory.