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...

After returning from the USSR, Tulyev was subjected to rigorous verification of his former "owners". He continues his work in Western intelligence, but already as a Soviet intelligence officer through the First Main Directorate of the KGB of the USSR. In a new capacity, he establishes the whereabouts of Hitler’s criminal Hoffmann, who was once sentenced to death, and helps the authorities arrest him. However, as a result of the conflict within NATO intelligence, Charlie Brighton, Hoffman's assistant, begins to hunt for him. At the same time, Tulyev manages to establish the identity of the murderer of his father, Karl Brockmann, with whom they crossed in the service of mercenaries somewhere in hot countries. He wants revenge, but, by an evil irony of fate, he must help prepare Brockmann for being cast as a spy in the Soviet Union.

Operation "Resident", which lasted 15 years, is coming to an end. But the indestructible agent of "Nadezhda" has one important mission left. Agent Carl Brockmann, who intends to steal the work of Academician Nikolai Nesterov in the defense sector, has been abandoned in the USSR. KGB leadership asks Mikhail Tulyev to return to the Soviet Union to find the spy. Meanwhile, Brockmann recruits former fascist collaborator Mikhail Kutepov for involvement in a dangerous operation.

A bomb-throwing incident in 1905 sets off a train of events which ends in a murder and a suicide.

An adaptation of the 1907 political novel of the same title by Joseph Conrad set in Portugal during the so-called "Hot Summer" of 1975, re-contextualizing the anarchist prose within the Carnation Revolution.

A London shopkeeper is also a secret agent in the pay of an Eastern European power, and is ordered by them to arrange an "atrocity".

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A secret agent masquerades as a toy-seller, successfully concealing his alter ego even from his young son until, on a daring mission, he is captured by an evil arms dealer, then it falls to his inexperienced offspring to save the day.

Musician Stefan meets a young attractive woman Lidia. Stefan is going on tour to Austria, and Lydia, "accidentally" remembering her Viennese acquaintance, asks to give her a souvenir from Moldova. In Vienna, Stefan is met by people who are well aware of his private life and even familiar with his diary. The musician begins to suspect something is wrong, but when his daughter's well-being is threatened, Stefan becomes truly worried...