根据韩(🍅)战期(qī )间(🔨)真实(shí )战事改编(📼)。1950年6月25日(rì )，北(běi )韩(🕰)挥军越过(guò )三八线突袭(🥈)南韩(hán )，三日攻陷汉(hàn )城（今首尔(ěr )）(🌫)，战(zhàn )线不断(duàn )南进(🏇)。在(📼)美军(🚤)及联(⚫)合国(guó )军支援下，南韩军逆势反击(jī )。美(🔲)军指挥(huī )官(🏐)麦克亚瑟(sè )提出代(🎫)号为「铁铬(✖)行(🙁)动」的仁川登陆计划，该计划急需一支大(dà )队(🚣)的兵(bīng )力从(cóng )侧(cè )翼阻击扰敌(🔢)、声东击(jī )(🌑)西，通过长(zhǎng )沙里切断北韩军的补(bǔ )给线。 由于任务本(💪)身极其艰钜(jù )，加上(shàng )南韩国军当时兵(bīng )力薄弱，无法(🤳)抽(🎋)调足够正规(🚴)军支援，军(jun1 )方不得不把这项(xiàng )任务交付(fù )给(gěi )(👊)772名学生兵执(➡)行，这些学(xué )生(👪)兵平均年龄只有17岁，仅仅接受(🙎)了(💿)两星期(🈺)的(de )军事训(xùn )练，在(📛)毫(háo )无(👌)实战(📸)经验的情(♌)况下投身战场。行军路上(shàng )固然杀机重重(chóng )，战(💣)友内部也(📞)诸多(duō )衝突，年少气盛，迸(bèng )发出(chū )各种(zhǒng )角(jiǎo )(🐂)力。 仁川(🧘)登陆战前夕(✖)，长(zhǎng )沙里登陆任(rèn )(🍹)务如期执行(háng )，这群徒(tú )有一腔热血但战力(lì )(🈂)薄(báo )弱的(de )学生们，无可(kě )(⛅)避(🏡)免地(💨)接(jiē )(🈸)受命(🛃)运中(zhōng )最(🕵)残(cán )酷的考验：穿越炮(🍉)火(🗒)与(yǔ )海浪，浴血长滩(tān )(🍝)，馀(🍈)下部队(👔)身陷敌军重重围剿，直至弹尽粮绝(jué )，挣(😂)扎(😙)于阵亡与倖存的分界线上(shàng )… 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 ammo, scant food supplies and raggedy weapons, can the students successfully carry out their mission and return home safely?