53 years earlier, in June 1950, the Lee family goes about their lives in the South Korean capital of Seoul. Lee Jin-tae owns a shoeshine stand to pay for his younger brother Jin-seok's education. Jin-tae has also bought them a silver pen, a precious item the brothers share, and is working on a pair of immaculate shoes for his brother to wear to school. Jin-tae's fiancée, Young-shin, works with the Lees' noodle shop. On June 25, 1950, North Korea invades South Korea, and both brothers are forcibly conscripted. They are assigned to the 1st Infantry Division, fighting at the Pusan Perimeter before advancing north upon the successful U.S. amphibious landing at Inchon. Jin-tae is told by a superior that if he can earn the highest award for a South Korean soldier, the Taeguk Cordon of the Order of Military Merit, his brother can be sent home. Jin-tae volunteers for many dangerous missions and performs suicidal acts of bravery to earn the medal, and is quickly promoted to sergeant. His heroism during the urban Battle of Pyongyang finally results in Jin-tae's nomination for the medal, but his combat experiences have made him into an emotionless killer, which horrifies his younger brother.