There is a replenishment in the Sokolov family. Schoolboy Misha and his mother Lera get to know the household better and try to please the picky mother Masha.
Maksim and Lera open a cafe-bakery, but the dream business does not bring income. Masha and Sasha's youngest son cannot understand what he was wrong about.
The family decides to distribute the payment of common expenses among themselves. The Sokolovs sons are trying in every possible way to find ways to save money.
A smart column is happiness for children, trouble for parents. Vladik uses an assistant to prepare for lessons, and Misha collects the voices of relatives.
Sonya and Ilya have a day off with their naughty nephews. At the mall, the Sokolovs middle son is figuring out how to outwit the children in order to save money.
Sasha and Masha have a pearl wedding. 30 years of marriage is an impressive period, so all the Sokolovs are preparing to celebrate this day in a special way.