根据韩战期间真实战事改编。1950年6月25日,北韩挥军越(yuè )过三八线突袭南韩,三(🗼)日攻(🥩)陷汉城(chéng )(🎾)(今首尔),战线不断南进。在美军(🐿)及联合(👑)国军支(zhī )援下,南(nán )韩军逆(💆)势(shì )反(🔲)击。美军指挥官(🕌)麦克(kè )亚(🎿)瑟提出代号为「(🙁)铁铬(gè )行动(dòng )」的(🥀)仁川登(😱)陆计划,该计划(🌙)急需一支大(dà )(🥁)队(🌚)的兵(bīng )力从侧(cè )翼(🖲)阻(🔢)击扰敌(dí )、声(shēng )东击西,通过长(zhǎng )沙里(lǐ )切断北韩军(jun1 )的补给(🙄)线。由(yóu )于任(💪)务本身(⏰)极(jí )其(qí )(🍄)艰钜,加(jiā )上南韩国军当时兵力(👺)薄弱(🏯),无法抽调足(zú )(🧟)够(🚴)正规军支援(🌮),军方不(bú )得不把(bǎ )这项任(rèn )务交(jiāo )付(🛎)给(gěi )772名(😊)学(🈸)生(shēng )兵(🏻)执(zhí )(🐛)行,这些学(🥋)生(🤷)兵平均年龄只有17岁(suì )(😝),仅仅接受(🎥)了两星期(qī )的军事(shì )训练,在毫无实战经验的(💸)情(🥅)况下投(🏃)身(🔞)战(zhàn )场(chǎng )。行军路上固然杀机重重,战友内部(bù )也诸多衝突,年少(😳)气(qì )盛,迸(bèng )发出(chū )各种角力(lì )。仁川(chuān )登陆战前夕(xī ),长沙里登(🚩)陆任务(wù )如(rú )期执行(háng ),这群徒有一(yī )腔热血但战力薄弱的学生(👼)们,无可(🏡)避免地接受(shòu )命(🛌)运(🍾)中最残(🚓)酷(kù )的(de )考验:穿(chuān )越炮火与(🐣)海浪(làng ),浴(⛎)血(xuè )长(zhǎng )滩(🐸),馀下部队(duì )身陷敌军重(🦐)重围剿,直至(🍗)弹尽粮绝(🖥),挣扎于阵亡与倖存的分界线上(shàng )…BasedontheincredibletruestoryofJangsariLandingOperation.WhenNorthKoreainvadesSouthKoreaonJune25,1950,theypushedSouthKoreaanditsallyUSArmytothesouthernmostcity.U.S.GeneralMacArthurplannedOperationChromite,whichwouldseethejointalliedforcestotakebackastrategiclocationofInchonandinorderforittosucceed,heneededasmallbattaliontoflanktheNorthKoreanarmyandeliminatetheirsupplylineatJangsaribeach.HavinglosthisfamilyonhisretreatawayfromNorthKoreabeforetheWar,amodelstudentChoiSung-pilenlistsinthearmytofightfortheSouth.KiHa-ryunisarebelliousyouthfromtheSouthwhovolunteerstofightinthewar.Allofthe772studentsandyouthsarelikethemwhoarebarelyoutofschoolwithonly2weeksofbootcamptraining.TaskforcecommanderCaptainLeeMyung-junknowsthatit’salongshot,buthehasnochoicebuttoleadthemintoacrucialmission.Meanwhile,USwarcorrespondentMaggiebravesthedangersofthebattlefieldtoreportonthewarinthefrontlines.ShefeelsempathyfortheKoreanstudentswhomustgointobattleonbehalfoftheveteransoldiersfortheircountry,andtriestodowhatshecanonherendtorescuethem.Withlittleammo,scantfoodsuppliesandraggedyweapons,canthestudentssuccessfullycarryouttheirmissionandreturnhomesafely?