Based on the Ukrainian folktale, the old dog of a village family is not as keen as he once was, and is sent away after he fails to guard their house during a robbery. In the woods, he meets the wolf he protected his masters against long ago, who decides to pay a favor to get his old enemy's rightful place back in the doghouse.
At the end of the 22nd century Alisa Seleznyova, her father Professor Seleznyov and pilot Zelyony go on a space expedition to find rare animals for Moscow Zoo. On the way they seem to encounter a mysterious conspiracy led by Doctor Verhovtsev against legendary Two Captains Kim and Buran. The only clue is a talking bird Сhatterer [Govorun] that our heroes accidentally took possession of.
A schoolboy meets all the undone by him homework's heroes in their country.
