根据(jù )韩战(zhàn )期(👷)间真实(⛲)战事改编。1950年6月(yuè )25日，北(běi )韩挥军(🤴)越(🍥)过(guò )三(sān )八线(xiàn )突袭南韩，三日攻陷汉(hàn )城（今首尔(📿)），战线不断(❣)南进(jìn )。在(zài )美军(jun1 )及联(lián )合(🐿)国军支援下，南韩军逆势反击。美军指挥官麦克亚瑟(sè )提出代号(hào )(🥞)为「铁铬行动」的仁川登陆计划(😱)，该(gāi )计(jì )划(huá )急需(🚢)一(🌙)支(zhī )大队(duì )的兵力从侧翼阻击扰敌、声东击西(🎛)，通过长沙里切断北韩(✋)军的补给线。 由于任(rèn )务本(běn )身(shēn )极其艰钜，加上南韩国军当(🤲)时(shí )兵力薄(báo )(💠)弱(👺)，无(wú )(🏯)法抽调足(🕐)够正规(guī )(🚴)军支援，军方不(🗳)得(dé )不把这项(xiàng )任(rèn )务(wù )交付给772名学生兵执行，这些(⛏)学生兵平均年龄(líng )(💅)只有17岁，仅仅(🔈)接(🏒)受(shòu )了两星(🐡)期的军事训(😙)练，在毫无实战经(jīng )验的情况(💸)下(xià )(🥅)投身战场。行(háng )军(📐)路上固然杀机(jī )重(🆙)重(🖍)，战友(yǒu )内部(🌸)也诸多(🏓)衝突(🎐)，年少气(🕕)盛(😳)，迸发出(chū )各(gè )种角力。 仁(👩)川登陆(lù )战(❓)前夕，长沙里(lǐ )登陆任(🍹)务(wù )如期执行，这(🧥)群徒有一腔热血但战(zhàn )力薄弱的学(🖱)生(💛)们(men )(👼)，无可避免(miǎn )地接(jiē )受命运中(zhōng )(🍾)最残酷的考验(♊)：穿越(🏗)炮火与海浪，浴血(xuè )(⛎)长滩，馀下部队身陷敌军重重围剿，直(♈)至弹尽粮绝(🐑)，挣扎于阵(👧)亡(wáng )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 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?