根据韩战(zhàn )期(qī )间(jiān )真实战事改编(biān )。1950年(nián )(😘)6月(yuè )25日，北韩挥军越(yuè )过(guò )三八线突袭南(nán )韩，三(🗼)日攻(🥩)陷汉城（今(🌫)首尔），战线不断南进。在(zài )(🖲)美(měi )军及(🕔)联合国军(🤷)支援下，南韩军(jun1 )(🙍)逆势(✳)反击(jī )。美(měi )军指(🚥)挥官(🕌)麦克亚瑟提出代号为「铁铬行(🖍)动(dòng )」的仁川登(😱)陆计(🤷)划，该计(jì )(🚢)划急(📎)需一(🚣)支(🔩)大(🥁)队的兵力从侧(😞)翼阻击扰(rǎo )敌、声东击西，通过长沙(shā )里切(✋)断北韩(🙌)军(🤠)的(de )补(🌞)给线。 由于任务本身极(jí )其艰钜，加上(shàng )南韩国军当时兵力薄弱，无(wú )法抽调足够正规军支援，军方不得不把(bǎ )这项任务交(jiāo )付给772名学生兵执行，这些学生(shēng )兵(🌪)平均(jun1 )年龄(líng )(💹)只有17岁(🔈)，仅仅(jǐn )接受(🐡)了(🈺)两(liǎng )星期的(de )军(jun1 )(🤥)事训练，在毫无(wú )实(🔷)战经(♌)验的(🥅)情(🐞)况下投身(🏴)战场。行军路上固然杀机重重(🔥)，战友(yǒu )内部(bù )也(🚽)诸多衝突，年(nián )少气盛(shèng )，迸发(🔪)出(chū )各种角力。 仁(🤼)川登陆战前夕(xī )，长(🚤)沙里登陆任务(💁)如期执行，这(zhè )群(🐈)徒有一(🔍)腔热血(xuè )但战(🐌)力薄弱的学生们，无可(💨)避免(miǎn )地接受(shòu )命运中最残酷(kù )的(de )考(🔍)验：穿越炮(pào )火(huǒ )与(yǔ )海浪(làng )，浴血(🐸)长滩，馀下部队身陷敌军重(🍏)重围剿，直至弹(🐑)尽粮绝，挣扎(🐼)于阵亡与(yǔ )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 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?