Yuri Zakrzhevsky

After Tulyev's arrest, Soviet counterintelligence continues the radio game with the enemy, sending encryptions signed "Nadezhda" to the Western intelligence center. KGB officer Sinitsyn, friendly towards Tulyev, tries to persuade him to take his side — he arranges a meeting to a scout with Mariya and her son, whom he has never seen before. In addition, Mikhail learns that his father didn't die of his own death, but was most likely killed. Meanwhile, a young Soviet scientist Borkov, who spoke at an international conference about his innovative work, finds himself in the spotlight of the Western security services.

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...

During World War II, the Frenchman Léon Garros and Boris Vaganov escape from the Nazi concentration camp. After 15 years, Léon, who became a journalist, and his friends came to the USSR to make a report and find Boris in the meantime. In Moscow he doesn't found, and for the sake of meeting with a friend, Garros has to travel around the country by car... The foreigners are accompanied by Nikolai, the translator, who, in turn, is looking for his brother's runaway bride, Natasha.