On June 27, 1942, a caravan of ships, codenamed PQ-17, left Reykjavik for Arkhangelsk. The route of the ships with cargo for Russia lay across the North Atlantic, where they were awaited by chilling winds, stormy seas and deadly attacks by German submarines and bombers.
The location is the Belarusian forests, close to the Polish border, during Operation Bagration in the summer of 1944. The Red Army is preparing to advance, but on one segment of the front there are two serious obstacles: an unnamed hill, and a highly skilled German sniper. The local commander, Major Inozemtsev, suspects that the hill is a trap.
1944. German Colonel Neuber is taken prisoner trying to cross the front-line but not before he hides stolen Soviet documents. The Germans send a team to recover the Colonel and the documents but Soviet intelligence are waiting for them.
Igor Rozhnov (Dmitry Ulyanov) could call himself an accomplished person. He has his own business, a chic mansion and a beautiful bride, Kristina (Yevgenia Loza). But successful life does not please Rozhnov. Deep down, he doesn't believe that he can be as happy again as he was thirteen years ago. Everything changes when Igor's competitors decide to ruin him. Without knowing it, they are giving him the biggest gift of his life.
Olga is a museum worker in a provincial town. Four years ago, her one-year-old daughter Yulia disappeared. Olga's husband Igor is saved from depression by connections on the side, Olga has gone headlong into work. Upon learning that the investigator is closing the case of Yulia's disappearance, Igor offers his wife to put up with it and give birth to another child. But Olga refuses. She believes that the girl is alive.