During WWII a Soviet artillery unit is fighting Nazis while trying to do everything to save lives of a group of deaf children near their position.

Thirteen-year-old nobleman and orphan Vanya Ogarev flees from Moscow to Nizhny Novgorod, fleeing assassins sent by his own uncle, who decided to take possession of the boy's inheritance. To protect himself, Vanya hires a random fist fighter named Volchok.