根据韩(hán )战期间(jiān )真实战事改编。1950年(nián )6月25日，北韩(hán )挥军(🔧)越过三八线突(🛤)袭南韩，三日攻(gōng )陷汉城(chéng )（今(jīn )首(👋)尔(ěr )(⏬)），战线不(🏇)断(duàn )南进。在(zài )美军及联合国(🎩)军支援(yuán )下，南韩(hán )(👁)军逆势(shì )反击。美(🚉)军指挥官麦(🛺)克亚(🎿)瑟提出代号(hào )为「(🙁)铁(tiě )铬行(háng )动」的仁(🕕)川(🤯)登陆计(jì )划，该计划急(jí )需一(yī )(🚣)支大(dà )(🥁)队的兵力从侧翼阻(🔢)击(jī )扰敌、(🌑)声东(dōng )击(㊗)西，通(tōng )过长沙(shā )里(lǐ )切断(🐑)北韩(🙌)军的补给线。 由于任务(wù )本身极其(⛏)艰(jiān )(🥫)钜，加上南韩(🤲)国军当(dāng )(😍)时(💠)兵力薄弱(ruò )，无法(fǎ )抽调足够正规军支援(👣)，军方不得(dé )(💝)不(💹)把这项任务交(🛎)付给(gěi )772名学生兵执(zhí )行，这些学(🤷)生(🃏)兵(bīng )平均(jun1 )年龄只有17岁，仅(jǐn )仅(💿)接受了两星(xīng )(📧)期的(😙)军(🤥)事(shì )训练(🔤)，在毫(📸)无实战(👵)经验的情况下投(tóu )身(🏴)战场。行军路上(👄)固然杀机重重(chóng )，战友内部也诸多衝突，年少气盛，迸发出各种角力(👩)。 仁川登陆战前(qián )夕，长沙里登陆任务如期执(🧥)行，这群徒(🔬)有一(yī )腔热血但(dàn )战力薄弱的(de )学生们，无可避免地接受命(mìng )运中最(zuì )残酷的考验：穿越炮(pào )火(huǒ )与海浪，浴血长(🍈)滩(🕌)，馀(yú )下部(bù )队身陷敌军重重(😻)围(♈)剿，直至弹(dàn )(🐑)尽(jìn )粮绝，挣(zhèng )扎于(🕤)阵(⛱)亡(🥈)与倖存的分界(🏒)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?