根据韩战期(⛲)间真实战事(shì )(📒)改编(biān )。1950年6月(🕸)25日，北韩挥军越过三八线突(🛤)袭南韩，三(sān )日攻陷汉城（今首尔(ěr )）(🎲)，战线不(bú )断南进(😎)。在美军及联(🔸)合国(guó )军支援(🛍)下，南韩军(🙍)逆势(shì )反(fǎn )击。美军(🏐)指(zhǐ )挥(🐖)官麦(mài )克亚瑟(sè )提(tí )出(chū )代号(hào )为「铁铬行动」的仁(🕕)川登陆计划，该(gāi )计划急需一支大队的兵力从侧翼阻击扰敌、声东击西(🥎)，通(tōng )过(🗞)长沙里切断(🐑)北韩军的补给线。 由于任务本(běn )身极其艰钜，加上(shàng )南韩国军(jun1 )当(dāng )时(shí )兵(bīng )力薄弱，无法抽调(diào )足(🚴)够正规军支援(👣)，军方(fāng )不得(💝)不把这项任(🍑)务(👊)交付(💍)给772名学生兵执行(háng )，这(zhè )(👪)些学生兵(bīng )平(💅)均年龄只有17岁(suì )，仅仅接(🎥)受了(🈺)两星(xīng )期(🔍)的(😙)军(jun1 )事训练(🔤)，在(zài )毫无实(shí )战经验的情(qíng )况下投身战场(chǎng )。行军路上(shàng )固(gù )然杀机重重，战友(📞)内部也诸多(🍁)衝突，年少(👗)气盛，迸发(fā )出各(gè )种角力。 仁(rén )川登(dēng )陆战前夕，长沙(🚩)里(🍹)登陆(lù )(🏸)任务如期执行，这群徒(🔬)有一腔(qiāng )热血但战力薄(báo )弱的学生们(⛅)，无可避免地接(🛌)受命运中最残酷的(👆)考(🔍)验：穿越炮火与(yǔ )海浪，浴血(xuè )(🐸)长滩(🕌)，馀下(😼)部队身(♟)陷敌军(jun1 )重(🍏)重围剿(⏭)，直(😄)至(🤠)弹尽(jìn )粮绝，挣扎(🐼)于(🕤)阵(⛱)亡(🥈)与(yǔ )(🖥)倖(xìng )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 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?