Mila overhears Angela's phone conversation and understands that the future stepmother is going to send her to a boarding school. Alexander firmly believes that his daughter is mistaken. The schoolgirl believes that the insidious bride has turned her father's head and the wedding must be disrupted at all costs. But even the best friends do not take Mila's concerns too seriously. Dima confesses to Nina that he does not know how to move to music. A classmate believes that she can prepare him for the dance in the shortest possible time, but the choreography class turns into a disaster.