While studying at the naval school, the hero of the book becomes a participant in a counterintelligence operation against spies in the city on the Neva. Having joined the state security agencies, he serves in the Northern Fleet with the same tasks. And the intelligence path directs his work to obtain secret information of a military-strategic and geopolitical nature, as well as information on the latest Western technologies in the field of aviation, space, electronics and chemistry. The author of the book, Anatoly Borisovich Maksimov, graduated from the Leningrad Naval Command and Engineering School . He served in the Northern Fleet in the Special Department (military counterintelligence). Then - in the tenth department of the First Main Directorate (PGU) of the KGB - foreign intelligence. His first trip abroad was to England, his second was to Japan.