In this true story, all the components of a thriller are evident - a secret confrontation between intelligence services, a bloody drama at sea, courage and cowardice, female dedication, lies and powerlessness of the powers that be, and an unexpected denouement. Few people know that in the winter of 1968, the threat of nuclear war near the borders of the USSR was as real as the Cuban Missile Crisis. Very little has been written about the North Koreans' capture of an American spy ship in the Soviet Union. Even today, domestic historiography adheres to the Marxist approach to those ancient events. Is it because it was then that the KGB penetrated the most intimate secrets of the main enemy? Based on facts and declassified documents, Mikhail Voznesensky offers a journalistic version of the hidden springs of the Pueblo incident.