Lisa becomes a victim of an insidious fraudster who faked Lyudmila Mikhailovna's voice and sent an audio message on her behalf. An unknown person embezzles the money collected by the whole class for the tour. Now the headman will have to give up the honorary post, as well as return the stolen goods. Arina breaks the ban and decides to sit at Dad's laptop. A glass of juice accidentally spills onto the keyboard, and the girl has to urgently save the situation before the Broom notices anything.

Sonya follows Yakushev's social media so passionately that it's more like an obsession. Sanya Fedotova understands that it's time to step in, and she uses her dad's money to buy her friend a ticket to St. Petersburg. The only thing left for the high school student is to find Igor in a huge city. Despite promising to leave Dad and Tatiana Vladimirovna alone, Diana continues to develop a plan against the psychologist. However, this time things are really getting out of control.