Lee Jin-tae (Jang Dong-kin) is a shoemaker living in Seoul, and the family's livelihood depends on the cost of repairing shoes. Although it is not materially wealthy, it is a very warm and complete family. His wife Lee Young Soon (Lee Eun-joo) and his mother open a noodle restaurant, and they have to take care of their younger siblings on weekdays, and their younger brother Lee Jin-seok (Won Bin) is all the hope of the family, and now he is studying in high school, and it is his dream to be admitted to university, and it is the sustenance of his brother Jin-tae.　　However, with the sudden outbreak of the Korean War in 1950, the peaceful life was quickly disrupted. As the war spreads to Seoul, Jin-tae decides to take his family to Daegu to escape the war. But on the way, they were forcibly drafted into the army and put on a train to the front line of the Nakdong River. Since then, the family has been torn apart. On the battlefield, Jin-tae has only one wish left: to protect his younger brother with his life at all costs, and when he hears that he can exempt his younger brother from military service as long as he receives a national medal, he rushes to the forefront of the battle like a madman. However, the cruel battlefield and the fate of the people inevitably changed the trajectory of their lives.