The fate of witnesses to secret operations is death. The only chance to survive is to attack yourself. Especially when experience, strength, skill and support of friends are on your side. Former FSB colonel Yegor Krugov is not just a witness, but one of the participants in the destruction of a secret laboratory for the production of psychotropic weapons, so the hunt for him is unfolding according to all the rules. However, it is not so easy to cope with the Man of Combat, the Knight, who masters the art of war and is strengthened by faith in goodness. Russia becomes his battlefield with the army of Satan.