Maxim Serov is a doctor participating in the mission to the ISS along with his partner Mikhail. The ISS flies through a strange glow and finds itself above the Earth, where the outlines of the continents are the same, but there are changes. But the most important thing is that there is no connection with the MCC, and there are no traces of human presence on the surface of the Earth. Maxim's partner dies and he decides to land on a deserted and wild Earth. The earth is not completely deserted and soon our astronaut will be able to meet both Cro-Magnons and Neanderthals. The book contains obscene language.