Psychologist Anastasia and cosmodrome chief Victor conduct an experiment to find out whether the team can cope with a two-year flight to Mars. Experienced cosmonaut Kovalyov, his ex-wife and medic Natalia, biologist Oksana, flight engineer Platon and Chinese cosmonaut Wei have no idea that they will spend two years not in space, but in a pavilion. Everything goes according to plan, until Mitrich accidentally turns up at the cosmodrome.