To get back into your youth, knowing the future, the cherished and unrealizable dream of many, many people. Correct your mistakes, make a career, make a lot of money. Or just travel the world, surprised by its diversity. And the miracle happened. In the eighth decade of life, having died on winter fishing, the hero finds himself in the body of a tenth grader. And it seems that all the paths and roads that were dreamed of in the evenings in old age in front of the embers smoldering in the fireplace are now open to him. But life is life, and it does not always work out the way you wanted, even if you know your future and the future of your country.