Two hundred years ago, a colony of people on a planet lost in the depths of space lost contact with Earth. Since then, the nameless City has been forced to fight for its existence from year to year. Epidemics of an unknown disease, mysterious disappearances of people, depletion of supplies, lack of work... When the population of the City prepares to rebel against the rulers, the leader of the rebellion, Arthur Vasiliev, finds old spaceships of earthlings. To win the impending war and save the survivors, Arthur and his closest associates will have to face the mysteries and secrets of the colony, go through abandoned underground roads and discover the technologies of the old Earth that were considered irretrievably lost...