Based on real events. November 1943. The Nazis bring a new batch of Soviet orphans to Vyritsa, where a so-called "children's shelter" is set up in a former pioneer camp. The conditions here are unbearable: cold, hunger, forced labor, a punishment cell for disobedience, and execution for attempting to escape. But the worst thing is that children are used as blood donors for wounded Germans. Despite all the horror and inconceivability of what is happening, having united, the young heroes find the strength and courage to resist and decide to escape.
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".