A big event happens in the life of six-year-old Anya Ivanova - she goes to first grade. It is difficult for a small person to understand everything at once, to distinguish bad from good. Imitating her lively girlfriends, Anya accidentally offends her friend Seryozha and the school nanny Aunt Klava. But next to the girl are her parents, friends, and teacher, who will always help her figure out the bad and praise her for her good deed.

1927. Trans-Siberian Express. Secret documents that will determine the future of the USSR and China are being transported across Russia. Under the guise of ordinary passengers, foreign intelligence officers and real thugs are hiding, ready to do anything for the sake of documents. A young Red Army soldier and a former Tsarist agent have to team up to uncover a common enemy.