The film is based on Russian folk tales. After serving in the army, a soldier is returning home. In an enchanted forest he meets Ivanushka whose mother, Maria the Wonderful Weaver, has been stolen by the evil, treacherous and elusive Tsar Vodokrut XIII. The brave soldier decides to help Ivanushka. In search of the boy’s mother, he will traverse with him the enchanted forest and will go down to the sea bottom.
A Fantastic and Magical Story of a Fairyland Kingdom Under the Sea. An old soldier helps a young boy find his mother, who's been kidnapped to the magical underwater kingdom in a remote Russian lake.

Terenty leaves the collective farm and goes to the city to study to become an agronomist. Marina works hard and looks forward to her husband's return. When her husband returns home, he reproaches his wife for being uneducated, asks for a divorce and leaves for the city. Left with her daughter, Marina devotes herself entirely to her studies and work.