根据韩(hán )战期间真实战(zhàn )(✒)事改(gǎi )编。1950年6月25日，北韩(🕰)挥军越过三八线突(🆖)袭南韩，三日攻陷(xiàn )汉城(chéng )(🥩)（今首(shǒu )尔）(🌫)，战线不(bú )断南(nán )进(jìn )。在美军及(jí )联合(🐿)国军支(zhī )援(yuán )下(xià )，南韩(hán )军逆势(👁)反击。美军(🥄)指挥(huī )官(guān )麦克亚瑟(🛺)提出代号为「铁铬行动」的仁川登陆计(🤯)划(😱)，该计划急需一支大(🧚)队的兵力从(📯)侧翼(yì )阻击扰敌(🔢)、声东击西，通(㊗)过长沙里切断(📙)北韩(hán )军的补给(🤠)线。 由于任务本(běn )身极其艰钜，加上南(nán )韩国军当时(🕙)兵力薄弱，无法(fǎ )抽(chōu )调足(🕐)够正规军(🧣)支援(⚾)，军方不得(🤘)不把(bǎ )这项任(💔)务交付给772名学生兵(bīng )执行，这(zhè )些(⛏)学生兵平(🤷)均年(🌪)龄(💅)只(zhī )有17岁，仅仅(🔈)接受了两(liǎng )星期的军事训(xùn )(😙)练(liàn )，在毫(háo )无(👌)实战(📸)经验的(de )(👵)情况下投(tóu )身战场(chǎng )。行军路上(🌂)固然(🌱)杀机重重，战友(🔥)内部(🌸)也诸(⏳)多衝突，年少(👛)气盛，迸发出(🚻)各种角力(lì )。 仁川登陆战(zhàn )前(📬)夕，长沙里登陆任务(⛴)如期(qī )执行(háng )，这(zhè )群徒(👅)有一腔热(🍯)血但战力薄弱(🐌)的学生们，无(wú )可(⛅)避免地接(jiē )受命运中(zhōng )最残酷(🚓)的(de )考验：穿越炮火与海(hǎi )浪，浴(🎆)血长(🏖)滩，馀下(🕌)部(bù )队身陷(🔮)敌(dí )(🈺)军重重围剿，直至弹(dàn )尽粮绝，挣扎于阵亡与(yǔ )倖存(cún )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 ammo, scant food supplies and raggedy weapons, can the students successfully carry out their mission and return home safely?

……