In the midst of the impassable landscape at the foot of the Alps, a young group of serious offenders is undergoing an experiential educational program intended to rehabilitate them. All of a sudden, a member of the program dies a violent death. Nobody knows exactly what happened, and the youths face a difficult decision. Should they wait for the authorities to recover the body and investigate the crime? Or, escape and take their fate into their own hands? The group doesn't have much in common with each other, though one thing unites them; all of them have had really bad experiences with the authorities and don‘t expect to be treated fairly. Since they don't know who the perpetrator is, they only have one option: to run. Up the mountains, up the highest peaks of the Alps. It seems hopeless until they stumble onto a complex cave system where they can find shelter from wind, weather, and their pursuers. In their fight against the forces of nature, they form their own society, according to their own rules: the Wild Republic.
The young family moves to a new apartment on the outskirts of the city and hires a nanny for their newly born daughter. Having come to trust, the nanny at night scares the infant and the eldest son Egor, who is trying to tell the parents about the strange behavior of the nanny, but they don’t believe him. To calm the father installs surveillance cameras, but everything turns out to be in order, nothing suspicious has been found. When once Egor returns home, he does not find a nanny or a little sister. But parents are in a strange trance and do not remember that they had a daughter.Surprisingly, with her baby all her toys and things disappeared, as if she had never been here before. Egor and his friends go in search, confident that the nanny is in fact an ancient evil demon, popularly called Yaga. And if they do not cope, their parents will also forget them.