根据韩战(🆓)期(⛲)间(jiān )真实(🥇)战(zhàn )(📼)事改编(biān )。1950年6月(yuè )25日，北韩挥军越过(guò )三八线(xiàn )突袭南韩(hán )，三日(🐮)攻陷汉城(🎾)（今(🌫)首(shǒu )尔），战线不断南(nán )(📼)进。在美(měi )军及联合国军(jun1 )支(🗄)援下(🎡)，南(nán )韩军(🙍)逆势反击。美(měi )军指挥(huī )官(guān )麦克亚瑟提出代号为「铁铬行动」(🐶)的仁川登(dēng )陆计划，该计(jì )划(🌙)急需一支大队的兵力从侧翼阻击扰(💱)敌(🦗)、声(shēng )东击(㊗)西，通(tōng )(💻)过长沙里切断北韩军的(🤸)补给(🙄)线。 由于(💪)任务(🎾)本身极其艰(jiān )钜，加(🧤)上(🔔)南韩国军当时(shí )兵力薄弱(🤳)，无(wú )法抽(chōu )调足(zú )(🚴)够正(zhèng )规(⚾)军支援，军方不(bú )得(💝)不(bú )把这(🏉)项(xiàng )任务(👊)交付给772名学(xué )生(shēng )兵执行，这(zhè )些(xiē )学生兵(bīng )平均(🌼)年(🚶)龄只有17岁，仅仅接(jiē )受了(le )两星(xīng )期的军事训练(🔤)，在(zài )毫无实战经验(💸)的情况下投身战场。行(háng )(🌂)军路(lù )(🌱)上固然杀机重重，战友内部也诸多衝突，年少(👗)气盛，迸发(fā )(🔪)出(chū )各种(zhǒng )角力。 仁(rén )川(❓)登陆战前夕(🎴)，长沙里登陆任务如期执行，这群徒有一腔热血(xuè )但战力薄(🖱)弱(ruò )的(👼)学生们(men )，无可避免(miǎn )地(🛃)接受命运(🎞)中(🚓)最(📯)残酷的考验(🏗)：穿(🗒)越炮(pào )火与海浪，浴血长滩，馀下部(🔮)队身陷敌军重重(chóng )围(wéi )剿(jiǎo )，直(zhí )至(zhì )弹(dàn )尽粮绝，挣扎于阵亡(🥈)与倖(xìng )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 commander 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 ammo, scant food supplies and raggedy weapons, can the students successfully carry out their mission and return home safely?