On the New Year's eve, a magical atmosphere prevails in the town. But, unfortunately, the parents of Misha Skalkin and Sonia Martyniuk are forced to go on business, leaving their children home alone. That's when the fun adventures begin...

Misha and Sonia are left at home again without their parents, but this time with a nanny. Meanwhile, the bandits from the first film escape from the prison.