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The Allied forces gain the upper hand over Germany. Standartenführer Stirlitz persuades Pastor Schlag to cooperate with the authorities.

As a Soviet intelligence officer, Stirlitz receives a mission from Moscow. He tries to understand who started separate negotiations with the West.

Stirlitz plans to contact Reichsfuehrer Himmler for intelligence purposes. Having broken the laws of secrecy, he helps his radio operators.

After the death of the radio operator, Stirlitz is left without communication with Moscow. The intelligence officer finds out who from the top of the Reich is negotiating with the West.

Stirlitz makes an appointment with Hitler's secretary, Bormann. The spy reveals his identity to the brother of his deceased comrade, Pleischner.

Stirlitz orders Schlag to contact pacifists in Switzerland. The Gestapo gets hold of a transmitter with radio operator Kat's fingerprints.

Pleischner goes to Bern with a report for Moscow from Stirlitz. Gestapo chief Müller decides to secretly take fingerprints from employees.

Officer Holtoff informs Stirlitz that he is in the sights of the Gestapo. Stirlitz smuggles Schlag across the Swiss border.

Schlag meets with politicians and church representatives. Gestapo agent Rolf interrogates Kat, and Müller intends to capture Stirlitz.

The soldier guarding Kat kills Rolf and escapes with her. Stirlitz seeks an explanation for why his fingerprints are on Kat's suitcase.

Müller offers Stirlitz assistance in negotiations with Bormann. Stirlitz tries to take Kat, who is wanted by the police, out of Germany.

Stirlitz reports to Moscow about the negotiations between General Wolf and American diplomat Dulles. Bormann intends to arrest Wolf.