Kwon Sang Woo portrayed the protagonist Kap Cho, a student soldier fighting against North Korean soldiers. The movie tells the story of battles fought between 71 student soldiers and North Korean soldiers. During the Korean War, the army led by Kang Seok Dae (Kim Seung Woo) had been withdrawn from Pohang to defend the Nakdong River area and left only 71 student soldiers behind. Among the students, Jang Bum (T.O.P) was appointed as a company commander, but his troops periodically caused friction with other soldiers led by Kap Cho. Park Moo Rang (Cha Seung Won), a commander of North Korean soldiers who devastated the Youngduk region with his 766 guerrilla troops, disobeyed the Communist Party’s order to advance to the Nakdong River, instead secretly changing course into Pohang and ending up fighting with the student soldiers who were left behind.
source: KBS Global