把柄韩战期间着实战事改编。1950年6月25日，北韩挥军凌驾三八线突袭南韩，三日攻陷汉城（今首尔），阵线不断南进。正在美军及松散国军增援下，南韩军逆势出击。美军调唆官麦克亚瑟提出代号为「铁铬行动」的仁川登陆筹划，该筹划急需一支大队的军力从侧翼阻击扰敌、出奇制胜，通过长沙里切断北韩军的补给线。由于使命本人极度艰钜，加之南韩国军当时军力纤弱，无奈抽调饶富正规军增援，军方不得不把这项使命交付给772逻辑老师兵推广，这些老师兵匀称年纪惟独17岁，仅仅接管了两星期的军事实习，正在毫无实战履历的状况下投身战场。行军路上诚然杀机重重，战友外部也诸多衝突，幼年气盛，迸收回种种角力。仁川登陆战前夕，长沙里登陆使命准期推广，这群徒有一腔热血但战力纤弱的老师们，无可必然地接管运气中最狠毒的魔难：穿梭炮火与海浪，浴血长滩，馀下队伍身陷敌军重重围剿，直至弹尽粮绝，挣扎于阵亡与倖存的分界线上…Based on the incredible true story of Jangsari Landing Operation. When North Korea invades South Korea on June 25, 1950, they pushed South Korea and its ally US Army to the southernmost city. U.S. General MacArthur planned Operation Chromite, which would see the joint allied forces to take back a strategic location of Inchon and in order for it to succeed, he needed a small battalion to flank the North Korean army and eliminate their supply line at Jangsari beach.Having lost his family on his retreat away from North Korea before the War, a model student Choi Sung-pil enlists in the army to fight for the South. Ki Ha-ryun is a rebellious youth from the South who volunteers to fight in the war. All of the 772 students and youths are like them who are barely out of school with only 2 weeks of boot camp training. Task force mander Captain Lee Myung-jun knows that it’s a long shot, but he has no choice but to lead them into a crucial mission. Meanwhile, US war correspondent Maggie braves the dangers of the battlefield to report on the war in the frontlines. She feels empathy for the Korean students who must go into battle on behalf of the veteran soldiers for their country, and tries to do what she can on her end to rescue them.With little a妹妹o, scant food supplies and raggedy weapons, can the students successfully carry out their mission and return home safelyεз