Anastasia, a psychologist, and Viktor, the head of the cosmodrome, are conducting an experiment: will the team be able to cope with a two-year flight to Mars? Experienced cosmonaut Kovalev, his ex-wife and physician Natalia, biologist Oksana, flight engineer Platon and Chinese cosmonaut Wei do not even realize that they will spend two years not in space, but in the pavilion. Everything goes according to plan, until Mitrich accidentally turns up at the cosmodrome...