In July 1941 during the retreat of Soviet troops Sgt. Mamin tries to rescue his Soviet heavy tank KV-2, which has fallen into a river. He gathers a motley crew of soldiers and civilians and readies the tank for battle.

Pavel Voskoy, a first-year student at a teacher training college, accidentally finds himself caught up in a whirlwind of complicated relationships between a group of students (notorious hooligans) and the college rector. Pavel's social inexperience and naivety lead to unfortunate consequences.

A fairytale about the Princess, the Musician, the Chancellor and a blue rose which forces everyone to tell the truth.