根据(👷)韩(🔨)战期间真实战事改编。1950年6月(yuè )25日(rì )，北韩挥军越过三(sān )八线(🐉)突袭南韩，三日攻陷汉(hàn )城(chéng )（今(jīn )首(shǒu )(👋)尔），战线不断(duàn )南进(jìn )。在美军及联合(hé )国(🎩)军(jun1 )支(zhī )(🗄)援下(🎡)，南(nán )韩军逆势反(🔲)击。美(měi )军指挥官麦克亚(🎿)瑟提出代(😚)号为「铁铬行(háng )动」的(🥀)仁川登陆计划，该计(🚢)划(🌙)急需(xū )一支(zhī )大队的兵力从侧(cè )翼(🖲)阻击(❔)扰敌、声(shēng )东击(㊗)西，通过长沙里切断北韩军的补给线。 由于任务本身极(🍄)其艰钜，加上南韩国军当时兵力(lì )薄弱(🤳)，无法抽调足(zú )够正(🤖)规军支援，军方(fāng )不得不把这项任(rèn )务交(jiāo )(🛎)付(💍)给772名学生兵执行，这(zhè )些学生兵平均年(nián )(🚶)龄只有17岁(🔈)，仅仅接(🎥)受(shòu )了两(🤔)星(📧)期的军事(shì )训练，在毫无实战经验的情(🐞)况下投身战(🚲)场。行军(🔙)路上固然(rán )杀机(jī )重重(chóng )，战(zhàn )友(📞)内部也(yě )诸多(duō )衝(🔲)突(tū )，年少气盛，迸发出各种角(⏺)力。 仁川登陆战前夕，长沙里(🍹)登陆任务(wù )如期(⏺)执行(háng )，这群徒有一(yī )腔热血但战(🐌)力薄弱的学(😲)生(🐅)们，无(wú )可(kě )避免地(🛃)接受命运(yùn )(🎞)中最(📯)残(cán )(🐇)酷的考(🔍)验(🏗)：穿越(🏆)炮火与海浪(⛎)，浴血(xuè )长(🍈)滩，馀下(xià )部(bù )队身(♟)陷敌军重重(😻)围剿，直(😄)至弹尽粮(😂)绝(jué )，挣扎(zhā )于阵(zhèn )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?