The mysterious object, called DiNLO by scientists, which did not reveal the secret of its nature on its first visit to Earth, again marks its presence. A US nuclear submarine is transferred from the Arctic to the island of Trinidad, a piece of the island is “eaten”, several helicopters and a tour group disappear, until finally a mysterious alien settles in the area of the Dzhugjur ridge in the Khabarovsk Territory. Major Khromov has hope of finding his brother, who disappeared along with DiUFO more than a month ago, and finding the key to an alien intelligence, the possibility of contact with which he has no doubt. The situation at the Russian borders is getting worse every day. The Pentagon is ready to start a war just to take possession of an object that it considers the sum of technologies capable of ensuring the United States global dominance. From now on and forever.