An experiment is being conducted at the cosmodrome to see if a team of astronauts can cope with a two-year flight to Mars. The participants of the experiment do not even realize that they will spend two years not in space, but in the pavilion. Everything goes according to plan, until Mitrich, an electrician, accidentally turns up at the cosmodrome...

Mitrich is nothing but trouble on the ship. Kruglova faces sabotage from Griban's subordinates.

Mitrich is trying to figure out how to get more food. Lucy and Vitalich are looking for a way to force the police to start searching for Mitrich.