Early 50s. Frosts, unusual for the Black Sea coast, scathered orange trees used for breeding new varieties at the experimental botanical station. There is only one specimen left, and there is nothing to pollinate it with.
The twenties. Hungry and impoverished country. Lenin signs a decree on the protection of breeding livestock. Nevertheless, Ivanov's experiments become known not only to the country of the Soviets, but also to enemies working for American farmers. The Chekists become involved in Ivanov's research.