MosGaz. Delo N5: Operatsiya "Satana"

1975 - Cold War between the USSR and the USA, arms race. Nuclear physicists are working hard. In the Soviet Union, a leak of secret information about the development of the Satan missile becomes apparent. It would seem, how can a police major be connected with intelligence services? However, it is he, Ivan Petrovich, fired from the MUR, working as an ordinary district police officer, who provides invaluable assistance to the KGB in capturing the American spy.