Prospect Mira Film Company

December 1941. Leningrad. The story centers on the main character, who, together with other employees, saves zoo animals from shelling. The people themselves are on the brink of life and death, but they do not abandon the hippopotamus named Krasavitsa.

Under Tanechka's influence, Ivan Semenov went from being a cheerful hooligan to being "mother's friend's son", or, to put it simply, "a suffocating one", from whom his friends and Tanechka herself turned their backs. In addition, they all found a new leader, Oleg, the best snowkayaker in Perm. And now, in order to get his friends and his beloved back, Ivan needs to defeat the snowkayaking champion not only in sports competitions, but also in the fight for his best friends.

The film tells about the adventures of a hooligan and dreamer Ivan Semyonov, who is transferred from an elite private gymnasium to an ordinary school on the outskirts of Perm for bad behavior. In the new class, Ivan quickly finds friends and plays pranks even worse, becoming a nightmare for the whole school.