Jeannette was very lucky: her apartment was chosen to participate in the TV show "Repair with pleasure". But her colleagues at work did not share the delight and suspected something was wrong. And so it turned out: the apartment was robbed… Lena, Artyom, Vadik and, of course, Mukhtar spent the whole day at flea markets and ruins. On one of them Lena and Artyom saw antique dolls stolen from Jeannette…
 

On the weekend, Artyom, Lena and Tolik are going to have a picnic, but Khrulev calls them and instructs them to investigate the theft of family jewels in the family of a businessman friend. Arriving with Mukhtar at a country mansion, the operatives inspect the office with a safe. Having found no extraneous traces, Tolik goes to play, and at the same time to talk with the children. And it turns out that mom and dad have been fighting for a long time and divorce is just around the corner… That's when the kids came up with the idea of how to reconcile their parents.