根据(👷)韩战期(qī )间真实战事改编(biān )。1950年6月(yuè )25日，北韩挥军(🔧)越过三(🆖)八(bā )线突袭(xí )(🌰)南韩，三日(rì )攻(🥩)陷(💤)汉城（今首尔），战线(xiàn )不断南进。在(🖲)美(⚫)军(jun1 )及联(lián )合国军支援下，南韩军逆势反(🔲)击。美(měi )军指挥(huī )官麦(🛺)克亚瑟提出代(dài )号为「铁铬(gè )行(háng )动」(🐶)的(de )仁川登陆计划，该计(🚢)划急需一支大队的兵力从侧翼阻击扰敌、(🌑)声东击(jī )西，通过长沙(shā )里切(qiē )断北韩(🙌)军的补给(🙄)线(xiàn )。 由于(💪)任(rèn )务本(⏰)身极其(⛏)艰钜(jù )，加上南(nán )韩国军当时(shí )兵力(⛳)薄弱，无法(fǎ )抽调足够正规(⚾)军支援，军方不得不把(💔)这项任务交(jiāo )付给(🚗)772名(🈸)学生兵执(🌹)行，这(👪)些(xiē )学生兵平(píng )均年龄只有17岁，仅仅接(🎥)受了两星(📧)期的军事训练，在毫无实战经验(yàn )的情(🐞)况(🍽)下投(tóu )身(shēn )战场(📐)。行(háng )(🌂)军路上固然(rán )杀机重重，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(zhàn )(🕺)前夕(🎴)，长沙里登陆任(rèn )务如(rú )期执(zhí )行，这(🈳)群徒有一(🔍)腔(qiāng )热血但战(zhàn )力薄(🖱)弱(💛)的学生们，无可避免(🙅)地接(🛌)受命运中(zhōng )最残酷的考验：穿(🗒)越炮(pào )(🐣)火与(🎁)海浪(⛎)，浴血长滩(tān )，馀下部(bù )队(🈺)身(shēn )陷敌(dí )军重(chóng )重围剿，直至弹尽粮绝，挣(👧)扎于阵(⛱)亡与倖存的分(👅)界线上(shàng )… 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?