The Secret Agent's Blunder(1968)

In the spring of 1961, KGB officers received information that an experienced intelligence officer Mikhail Zarokov, son of the Russian emigrant Count Tulyev, with extensive international experience and knowledge in various operations was abandoned on the territory of the Soviet Union. He is sent to Russia to carry out a very difficult and risky task, which is directly related to the nuclear industrial complex and transfer the collected information abroad...