Planet Earth survived the cataclysm, and only fragments remained from the usual world. Most of humanity died as a result of the use of a combat modified smallpox virus. One of the islands of mankind that preserved civilization after the global catastrophe, located in the Kuban, is trying to survive in the fight against feral brothers, as well as to raise civilization anew. Guard Sergeant Alexander Mechnikov served his five-year contract and retired. He is free, has a livelihood, wants to marry and live like an ordinary person.