The search party, whose fighter was paratrooper Andrei Markelov, had the most difficult task - to cleanse the Galaxy of gralls - monsters that centuries ago expelled humanity from the planets they had conquered. The supernatural abilities of the monsters were involuntarily transferred to the search engines destroying them, and in the eyes of those who sent the guys to this terrible battle, they themselves turned into doomed suicide bombers. A fire tornado fell as a reward on the walls of the ancient castle where the last grall was killed. Markelov and his friends only miraculously survived. But the danger to the surviving heroes was not only from “their own”. At the Cosmic Council of the Supreme, a decision was made to replace the human race, which had fulfilled its function in the Universe...