根据(👷)韩(hán )战(🆓)期(qī )(⛲)间真实战事改编。1950年6月(yuè )25日，北韩挥军越(yuè )(🎗)过三八(🥈)线(xiàn )突袭南(nán )韩(hán )，三日(🐮)攻陷汉城（今首尔）(🎲)，战(zhàn )线不断南进(jìn )。在美军及联(🔸)合国军支援下(xià )，南韩军逆(nì )势反击。美军指(zhǐ )挥官(guān )麦克亚瑟(🎫)提出代号(🍮)为「铁(tiě )铬行(🖍)动」的仁川登陆(🐖)计划(🔊)，该计划急(jí )需一(🚣)支大(dà )(🥁)队的(📯)兵力从侧翼(🖲)阻击扰敌(dí )(🦗)、声东击西，通过长沙(shā )里切断(duàn )北韩军(jun1 )的补给线(xiàn )。 由于任务本身(shēn )极其艰钜，加上南(nán )韩(hán )国军当(dāng )(😍)时(shí )兵力薄弱，无法(🕐)抽(🐀)调足(zú )够正规军支(🌮)援，军(jun1 )方不得不把(💔)这(🏉)项任务(👊)交(jiāo )付给772名学生兵执行(háng )，这(👪)些学生兵平均年龄只有(🐩)17岁(suì )，仅仅接(jiē )受了两星期的军(🤥)事(⏲)训练，在毫无实战经(♌)验(yàn )的情况下投身战(zhàn )场。行军路上固然杀(shā )机(🔫)重(💣)重，战友(yǒu )内部(bù )(🏓)也诸(🎐)多衝突，年少气盛，迸(bèng )(🍺)发出(chū )各种(zhǒng )角(⏺)力。 仁川登陆(✖)战前夕，长沙里(🍹)登(dēng )(⛴)陆任务(💁)如(🈺)期执行，这群徒有(yǒu )一腔热血(🈂)但战力(lì )薄弱的学生(shēng )们，无可避免(miǎn )地接受(shòu )命运中(zhōng )最残(cán )酷的考验：穿(🗒)越(🏆)炮火与(🎁)海浪，浴血长滩，馀下(xià )(😼)部队身陷敌军(jun1 )重重围(wéi )剿，直至(🤠)弹尽(jìn )粮绝，挣(zhèng )(👧)扎于阵亡与倖(📸)存(🌲)的(de )(🌽)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?