Marina notices the missing smaller Kiselyov, and the thief turns out to be a little girl. At the same time, Anton conducts the first interrogation in his life and frames his colleague Serega.

Marina learns what flirting is and tries to solve her problems using this technique. Anton is faced with a terrible situation for every male on Earth - the arrival of his mother-in-law.

Anton got sick and is now learning about folk methods of treatment. Marina does not give up trying to find the Emperor's son, and for this she is forced to meet the father of one of her students.