根据韩战期间真实战事改编。1950年(nián )(🌰)6月25日(rì )(🕸)，北韩挥军越过三(sān )八(🎗)线(xiàn )突袭(🥈)南韩，三日(🔬)攻(🏴)陷汉(hàn )城(chéng )（今首(shǒu )(🎾)尔）(🌫)，战(⏬)线不断南进(🏇)。在(📼)美军及联(⚫)合国军支援下(xià )，南韩军逆势反击。美军(jun1 )指挥官麦克(kè )(🐖)亚瑟提出代号为(wéi )「铁铬行动」的仁川登陆计划(😱)，该计划急需(🚢)一(🌙)支大队(duì )的兵(🥁)力从侧翼阻击(😞)扰敌、声东击西(🎛)，通(tōng )过长沙里切(qiē )断北韩(✋)军的补(🙌)给(gěi )线。 由于任务本(běn )身极(🎾)其艰钜，加上南韩国(guó )军当时兵力薄弱，无(🏯)法抽调(diào )足够(🐀)正(🧟)规军支援，军方不得不(bú )把这(zhè )项任务交付(🍑)给772名学生兵执行(🏻)，这些(⛏)学生兵平均年龄只有17岁(suì )(🐩)，仅(😝)仅(🔈)接受(🙎)了两(liǎng )星期的军(jun1 )事(shì )(🔍)训(xùn )练，在(📛)毫(🔤)无实战经验的情况下投身战场。行军路上固(gù )然杀机(jī )重(🆙)重，战(💣)友(🔥)内部也诸多衝突，年少气盛，迸发出(chū )各种角(jiǎo )(🐂)力。 仁(👩)川(chuān )登陆战前夕，长沙里(😉)登陆任(rèn )务如期执行，这群徒有(yǒu )一腔热血但战(zhàn )(💕)力(lì )薄(🚪)弱的学生们，无可(kě )避免地接(jiē )受命运(yùn )(🛌)中(zhōng )最(zuì )残酷的考(kǎo )验：穿(🔍)越炮火(huǒ )与(yǔ )海(hǎi )浪(🌒)，浴(🎆)血长滩(🍝)，馀下部队(👔)身陷(xiàn )(🔮)敌军重重围剿，直至弹(🍗)尽粮(liáng )绝(🐑)，挣扎于阵(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 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?