根据韩战期间(✒)真实(🥇)战事(shì )改编。1950年6月25日，北韩挥军越过三八线突袭南韩，三(sān )日(rì )攻陷汉城(🎾)（今首尔），战线(xiàn )不(🏇)断(♑)南进。在美军(🐿)及(jí )联合(👑)国军支(🗄)援下，南韩军(🙍)逆势(shì )反击。美军指挥官麦(🛺)克亚瑟提出代(dài )号为(wéi )「铁铬行动(dòng )」的仁川登(😱)陆(lù )计划，该计划急(jí )需一支(zhī )大(dà )队(duì )(🌚)的(de )(📯)兵力(🛑)从(⏯)侧翼阻击扰(💱)敌、声(🎛)东(dōng )击西，通过(🗞)长沙(📙)里(lǐ )切断北韩军(🤠)的补给线。 由于任(⛓)务本身极(🍄)其(qí )艰钜(jù )，加(jiā )上南韩国军当时(shí )兵力薄(báo )弱(ruò )，无(🥕)法抽调足够正(🤖)规(⚾)军支援，军方不(❕)得(dé )不把这(🏉)项(xiàng )(🥊)任务交(jiāo )付给772名学生兵执(🌹)行(háng )，这(👪)些学(🤷)生兵平均年龄只有17岁，仅仅接受(shòu )了(le )两星期的(😙)军(🤥)事(shì )训练，在(zài )毫(📸)无(wú )实战经(♌)验(yàn )的(de )情况下投身战(🚲)场(chǎng )。行军(🔙)路上(👄)固然杀(shā )机(jī )重重，战(🌸)友内部(bù )也诸(zhū )多衝突，年少气盛，迸发出各种(zhǒng )角(jiǎo )力。 仁川(chuān )(❓)登陆(✖)战前夕，长(zhǎng )沙里登陆任(❄)务(wù )如期执行，这群徒(🔬)有一(yī )腔热血但战力(lì )薄弱的学(😲)生们，无(wú )可避免地(dì )接(jiē )受(🍾)命运中最残(cán )酷的(👆)考验：穿越炮火与海浪，浴血长(zhǎng )(🍈)滩，馀下部队身(♟)陷(🔝)敌军重重围剿，直(😄)至弹尽粮绝(😙)，挣扎于阵亡与倖(📸)存的分(fèn )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?