根据(jù )韩战期间(🔨)真实战事改(🥇)编。1950年6月25日，北韩(🕰)挥(🤢)军(jun1 )越(yuè )过三(🔧)八线突(tū )(🆖)袭(🥈)南韩，三日攻陷汉(hàn )城(chéng )(🥩)（今(😧)首尔(ěr )），战线不断南(nán )(🌗)进。在(zài )美军及联(⚫)合国军支援下，南韩(hán )军逆(nì )势反(fǎn )击(jī )。美军指挥官麦(mài )(🚥)克(🐖)亚瑟(🛺)提出代号为「铁铬行动(dòng )(😻)」的仁(rén )川(chuān )登陆(🕕)计划，该计划急需一支大队的(de )兵力从侧翼阻击(😞)扰敌、声东(dōng )(🦗)击西(xī )，通过(guò )(🥎)长沙里切断北韩军的补给(gěi )(🤠)线。由于任务本身极(🎾)其艰钜(jù )，加上南韩国军当(dāng )时兵(⛳)力薄(báo )(💠)弱，无法(fǎ )抽(🎋)调(diào )足够(gòu )正规军支援，军(🌮)方不得不把这项(xiàng )任务交付(fù )给(gěi )772名学(xué )生兵执(zhí )行，这(zhè )些(⛏)学生兵平(🤷)均年龄只有(yǒu )17岁(suì )，仅仅接受(🙎)了两(liǎng )星期(🈺)的军事训练，在毫(🔤)无实战经验的情况(💸)下(xià )投身战场(🔞)。行军路上固然杀机重重，战友内部也(📞)诸(zhū )多衝突，年(nián )少(👛)气(🕕)盛，迸发出各种角力(👚)。仁川登陆(lù )战前夕(xī )，长沙里登陆任务如期执(zhí )行(🈺)，这(🧥)群徒有(🈳)一腔热(🍯)血(🔍)但(dàn )战力薄弱的(🐱)学生(shēng )们，无可避免地接(🈸)受命运中最残(🎞)酷(kù )的(📯)考验：穿(chuān )越炮火与(🏆)海浪，浴(🎆)血长滩，馀下部(🏗)队身陷敌军重重围剿，直(zhí )(♈)至弹尽(😄)粮(liáng )绝(jué )，挣扎于阵亡与倖存的分界(🌲)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?