Zadov accidentally finds the family sledgehammer. Striking himself on the forehead with it, Vasily gets a vision: his great-great-great-grandfather - Ivan Krasna Zadnitsa - tells him about the miracles that this sledgehammer is capable of.
After a violent drunkenness, Vasily cannot remember where the money from the common fund, which the battalion commander entrusted to him, disappeared. Vasily begins to remember his actions over the past week, and looks for suspects.
For the first time in Russia, presidential elections are held by means of a money lottery. It becomes known that Pasha will be elected president, after which he suddenly comes under close public scrutiny.
Pasha, Serezha and Lenya are having a bachelor party: tomorrow they will have to part with their bachelor life. But after thinking it over, they realize that they are not quite ready yet. And looking for ways to avoid their own weddings.
Leaving for the resort, the battalion commander leaves his greyhound named Gerda in the care of Vasily. However, Zadov doesn't know how to handle dogs.
Stepan receives news that his uncle has died in America, leaving his nephew a legacy of US citizenship. Stepan leaves, and a year later he returns as a completely different person to take his wife and son with him.
Seryozha, wanting to make Tanya fall in love with himself, gives her a love elixir invented by a botanist to drink, but Tanya first notices a simple factory worker, not Seryozha.
Vasiliy is going to be sent on a business trip to the Arctic Circle; Out of friendship, Pyotr Semyonovich writes him a false certificate that he is ill; and Taras meets a flirtatious brunette who fell into a sewer hatch.
Tired of eternal beatings and humiliation, and also worried about his theory of teleportation, which Zina rejected, Pyotr Semyonovich goes into a binge, taking Vasiliy and Stepan with him.
Late in the evening, a sex maniac attacks Nina at the entrance. An enthusiastic Nina shares her experience with Zina. Soon, the maniac attacks Zina and Lucya. As a result, the husbands declassify the maniac.
Pasha and Seryozha steal from a unconscious Jew a wallet, a letter and a map of their house, where the location of the treasure is marked. In search of it, they break down bathrooms in their own and neighboring apartments.