有很多细节没大跟上，然后去补了一下课hhhhh，来自Wikipedia，对于一些脸盲的地方有帮助。

The movie tells the story of a young Polish girl, Zosia Głowacka, from Volhynia's a village settled by Ukrainians, Poles and Jews.The story begins shortly before the outbreak of World War II in 1939 with the marriage of Zosia's sister to a Ukrainian. During the wedding, Zosia's father decides that she has to marry an older village administrator and a widower, Maciej Skiba, despite her being deeply in love with a young, local Ukrainian boy, Petro. The local Ukrainian population shows a lot of resentment towards Polish officials, as they favor the Polish minority in Volhynia. Because of that, some Ukrainians carry out terrorist attacks against Polish authorities and Ukrainian collaborators. These attacks are met with severe actions from the Polish government, including closing Orthodox churches and the humiliation of the Ukrainian population. Despite that, some parts of the Ukrainian and Polish populations try to reconcile with each other.

When the war begins, Maciej gets conscripted to the Polish Army to fight against the Germans in the September Campaign. When the campaign is lost, Maciej and other survivors try to return to their homes. On their way back, all members of the group, except Maciej, are captured by local Ukrainians, tortured and killed.

Maciej manages to get to the village thanks to disguising himself as a Ukrainian. The village is in the eastern part of Poland, which gets occupied by the Soviet Union, and communist rule is established in the village. The local Ukrainian and Jewish populations co-operate with the Soviet authorities, replacing prewar Polish authorities as governors.

In the meantime, Zosia gets pregnant, most likely by Petro, but wants Maciej to believe that the child is his. As a part of a massive deportation of the Polish population carried out by the Soviets in 1939–1941, Zosia, Maciej and his children, are about to be sent to Siberia or Kazakhstan to do forced labour. Zosia and the children are rescued in the last moment, just as the train is about to depart. Petro bribes the guard with vodka. When they come back to Petro's home, Zosia gets contractions. While she is giving birth to her child, the guard arrives and kills Petro. Zosia then takes care of Maciej's home and children during his absence. The children are sent to a school organized by the Soviets.

The plot then switches to 1941, when the German Army is conquering Volhynia during Operation Barbarossa. The Germans begin to kill the local Jews and organize local police units from Ukrainian collaborators, who actively participate in the Holocaust. However, Zosia and other Ukrainians still try to help the Jews by hiding them in safe places.

In the meantime, Maciej comes back home after he manages to escape deportation. The family tries to organize its life in the changed reality, as the Poles face increased hostility from their Ukrainian neighbours, resulting in an increase of murders of Poles committed by the latter. One day Maciej sets out to the local market despite Zosia's protests motivated by her fearing for his safety. She is proven right, as the other Polish neighbours arrive some days later with Maciej's head cut off.

Zosia tries to get by the best she can while she takes care of the children. However, one day, she defends herself against an attempted rape by a Ukrainian policeman, and the presence of the Jews hidden by her is revealed. The Jews, an old couple and a young unrelated boy, escape and find shelter for the winter in the home of a local Ukrainian, who agrees to help after the Jew promises him a large amount of money. When the Jew's wife dies and winter comes, the Ukrainian demands a payment. When he asees that the Jew cannot pay him, he murders him in the forest. The young Jew is rescued by the Ukrainian's son.

In the summer of 1943, news about the killings committed by Ukrainians spreads among the Poles in the village. At the time, a young Polish man who is seriously injured arrives at Zosia's home. When he recovers, he settles there as it makes Zosia feel safer. He contacts the local Home Army unit, which, by orders of the Polish government in the United Kingdom, does not protect the Poles from Ukrainian attacks but prepares to fight the Germans in the future. When the young man is asked to be a guide for members of the Home Army on the way to a meeting with the Ukrainian Insurgent Army (UPA), Zosia desperately tries to discourage him from going. She failed to stop him. When two members of the Home Army arrive at the meeting, as agreed without weapons, they get surrounded by the UPA soldiers, captured, and then dismembered by horses. The men from the UPA then hunt for the rest of the Home Army group. They find only Zosia's friend, who has escaped and is hiding in a church that is full of Poles. During the ceremony, the Ukrainians enter the church, killing everyone in the way, but Zosia's friend. She runs to the church's tower and somehow survives the attack.

In the meantime, the local Ukrainian population, the former Ukrainian policeman and his friends join the UPA in the forest. They gather and call to eradicate the lands from Poles. There are two ceremonies from the Ukrainian Orthodox priests shown: the first one preaching about loving neighbours and the second one calling to kill all Poles to achieve pure Ukrainian lands at last.

Soon, the first survivors of the pogroms arrive to the village and tell the story of Ukrainian neighbours killing Poles and everybody who protested against the killings. The local Ukrainian village administrator arrives at Zosia's home to ensure her that she and her children can stay at home, as they would not be harmed by their Ukrainian neighbours. Also, other Polish people are reassured about their safety. However, those are only deception tactics to allow Ukrainians to kill as many Poles as possible.

The killings in the village begin at night. Zosia escapes with her child, but as she runs away, she sees Poles being tortured, including pregnant women being stabbed in womb, people getting disemboweled and getting their eyes gouged out. Zosia's stepson is murdered during this massacre. Her stepdaughter, however, is rescued by a Ukrainian peasant. On their way to escape from certain death, Zosia and her child arrive to Petro's previous house, where they get rescued by Petro's mother.

As Zosia runs away with her child from place to place, she encounters the corpses of mutilated Polish infants, women and elderly in every village. In one place, she runs into a unit of the German Army, which saves her from certain death, just moments before Ukrainians are about to kill her and her child. The Germans are astonished at first as to why she walks alongside them, but when they find more and more stacks of murdered Poles on their way, they feel sorry for her and escort her to the place where her sister, Helena, lives. She is welcomed there, as Vasyl, Helena's Ukrainian husband, is friendly to Poles. Zosia hides in their shed with her son. As most of the village's population is already involved in killings, Vasyl's brother tries to convince him to join the nationalists and to kill his Polish wife so that he can save himself and the children. As they wrangle, Vasyl kills his own brother with an axe.

The next night, the whole family is attacked by Poles who seek revenge on Ukrainians. They condemn Helena for living with a Ukrainian. They slaughter her newborn in front of her eyes, kill Vasyl and behead her. Zosia observes everything from the shed. Terrified, she escapes again and is now afraid of both Ukrainians and Poles. She hides in the woods with her son. Subsequent scenes show the UPA rushing through the forest, exultantly celebrating while leading a cart occupied by the Poles who killed Helena's family and other Ukrainians, but now disfigured, mauled and visibly tortured as punishment for the retaliatory attacks. A young, blond man with obscured features places Zosia's son on a horse-drawn cart, before approaching Zosia's resting place in the forest. The film then alternates between shots of an unconscious Zosia on a cart, Zosia and her son walking through a German checkpoint at a bridge, before finally settling on an unconscious Zosia lying on the cart, her son sitting at the front of the wagon with the young man, who looks exactly like Petro, making their way through the wide green fields of Volhynia.