On 16 April 1945, Gregor Hecker and his small squad follow in the wake of the 48th Army's westward advance from Brandenburg through the Oder River. This is the first time the young Soviet officer has returned to his homeland since he and his parents immigrated to Moscow when he was eight years old. He returns to his homeland as a stranger.
They arrive in Bernau, which is under occupation by Soviet armored personnel, where Hecker is quickly named commandant of the city. With the help of a handful of people, he tries to bring about order by establishing the authority of the Communist Party. Hecker’s department finds living accommodations for the staff. They then come across a surprised German Army Inspectorate. The German Etappenmajor Behring wants to surrender to the Soviet forces properly, but his phone call to his superiors is believed to be a prank call.
In Sachsenhausen, Sascha Ziganjuk and Hecker meet their leader, Wadim Gejman. He is trying to save a German soldier from revenge of a Soviet soldier, who was just freed from a concentration camp. However Gejman cannot save the German soldier from being shot, which he hears as they make their way back towards the camp. In the camp, Hecker and other Soviet officers are shown by a former prisoner the full extent of Nazi atrocities, through the examples of the gas chambers and the Genickschussanlage.
On 30 April 1945, Wadim Gejman receives the order to negotiate the handover of the Spandau Citadel and takes Hecker along as an interpreter. Together, they go before the barricaded gate of the defended fortress. The fortress commander, Colonel Lewerenz, and his adjutant climb down a rope ladder to them. While the other officers in the fortress debate the surrender, Lewerenz explains the German officers' code of honor. When Gejman is soon notified that the Fortress refuses to surrender, he asks to be taken to speak directly with the officers. Gejman and Hecker are allowed to climb together with the Germans into the fortress.
As Gejman tries to impress upon the German officers the hopelessness of their situation, another situation develops elsewhere within the fortress. An SS-Obersturmbannführer honors a Hitler Youth who destroyed a tank and shot one of its crew with a medal. The SS man is then prevented by the adjutant from shooting the parliamentarians and using the opportunity to flee.
On the 1st of May, after the success at Spandau, the good-humored driver Dsingis detours the slalom around wrecked trucks on the empty Autobahn. In one of the destroyed vans, Hecker meets a blind German Army soldier, Klaus Manchen, who mistakes him for a German. Despite the man's serious injury, he is hopeful about the future, not knowing that the Russians have already crossed the border.
That evening, a May Day celebration is held. A drunk Hecker falls from a ledge, and imagines hearing his mother's voice, berating him for doing everything too early, including smoking and drinking schnaps. Later, he watches an outburst of emotion from one of the liberated German communists, who loudly supports that all the Nazis should be hanged. The General placates him by saying that revenge is not the best advisor.
The next day, they head back to Spandau to support headquarters. On the way, Hecker and his companions bring along two of the communists. One is instated as mayor in an abandoned place. The other talks with Hecker until they go their separate ways at a checkpoint.
Everything is beginning to feel normal, however this feeling is deceptive. German troops break out of the Berlin basin and, disguised as Soviet units, try to go west. Hecker and his comrades barely escape a surprise attack.
They settle down near a small river crossing and use loudspeakers to try and convince German soldiers to stand down. It is unsuccessful at first, but Hecker soon manages to convince a few to surrender. Soon, they have a large number of prisoners.
Hecker finds a kindred spirit in Willi Lommer, a German non-commissioned officer from Berlin. When marauding SS troops attack the group of prisoners, Lommer takes up arms with the Soviets. Soon, the SS troops withdraw, but Ziganjuk has fallen. Hecker, full of anger and pain, shouts at the fleeing SS troops through the loudspeakers.
Before the German prisoners are transported away, Lommer hands Hecker a letter for his family. Hecker promises to deliver it.
