Arriving on an excursion to St. Petersburg, classmates Dana and Lyova witness the theft of the famous "Chizhik-Pyzhik". According to legend, if you make a wish and get a coin on the pedestal of the monument without dropping it into the water, it will surely come true. But "Chizhik" is gone. Does this mean that the guys will never be able to realize their dreams and Lyova's parents will still get divorced, and Dana will not become a famous blogger? Courageous schoolchildren rush in search of kidnappers, hiding from teachers, parents urgently summoned from Yekaterinburg, policemen and even from themselves.... "Peter the Great".

The year is 1917. We are in the Russian countryside. It is the middle of freezing winter. A pale young, newly educated doctor arrives. Having to deal with one medical challenge after another he soon becomes the center of everyone's attention. To soothe the impressions of human suffering he turns to morphine.