Yuri Spraytyvich has been selected for the role of Junior Strategic Missile Force Manager of Čerëmuški Command Post in Chita, Siberia. His new position comes with a lot of responsibilities and he will need to deal with lack of maintenance, worker strikes, radioactive materials and PERIMETER, the automatic defense system. When PERIMETER receives by mistake the order to start the launch of the ballistic missile, it is up to Yuri to fix the problem and save the world from nuclear apocalypse.