The police and intelligence services of the city of Tikhodonsk reveal the preparation of a large-scale terrorist attack using a portable nuclear bomb, which is being prepared by the famous international terrorist Cheetah. A particularly dangerous criminal is well known to former Soviet intelligence officer Max Kardanov, who once even saved his life. Kardanov lives happily with his family in London, but representatives of the powerful Russian organization “Consortium” in a sophisticated way lure him to Russia, where he immediately finds himself in the center of confrontation between various social groups, criminal groups, intelligence services and terrorists...