▁the ▁woods . ▁ ▁The ▁Wol ver ines ▁eventually ▁encounter ▁Marine ▁Serge ant ▁Major ▁Andrew ▁T anner ▁and ▁two ▁other ▁Mar ines , ▁Smith ▁and ▁H od ges . ▁They ▁reve al ▁that ▁the ▁Russian - back ed ▁North ▁Korean ▁invasion ▁used ▁an ▁E MP ▁weapon ▁that ▁cri pp led ▁the ▁U . S . ▁elect rical ▁grid ▁and ▁military , ▁followed ▁by ▁land ings ▁along ▁the ▁east ▁and ▁west ▁coast s , ▁with ▁American ▁counter att acks ▁eventually ▁hal ting ▁their ▁adv ances , ▁leaving ▁an ▁area ▁stretch ing ▁from ▁Michigan ▁to ▁Mont ana ▁and ▁Alabama ▁to ▁Arizona ▁as ▁" Free ▁America ", ▁using ▁the ▁Rock y ▁Mountains ▁as ▁a ▁shield ▁in ▁the ▁west , ▁and ▁po ckets ▁of ▁patri otic ▁gu err illas ▁in ▁the ▁C asc ades ▁and ▁the ▁Sierra ▁Nev ada ▁mountains . ▁They ▁also ▁reve al ▁that ▁Captain ▁Cho ▁car ries ▁a ▁suit case ▁containing ▁an ▁E MP - res istant ▁radio ▁tele phone ▁that ▁would ▁enable ▁the ▁U . S . ▁command ▁to ▁contact ▁its ▁remaining ▁forces ▁for ▁a ▁counter - off ensive . ▁The ▁Wol ver ines ▁assist ▁T anner , ▁Smith , ▁and ▁H od ges ▁in ▁in fil tr ating ▁the ▁local ▁police ▁station , ▁the ▁North ▁Kore ans ' ▁center ▁of ▁operations . ▁They ▁succeed ▁in ▁ste aling ▁the ▁suit case ▁with ▁Jed ▁a ven ging ▁his ▁father ' s ▁death ▁by ▁killing ▁Cho , ▁though ▁H od ges ▁is ▁killed ▁in ▁the ▁fire f ight . ▁ ▁After ▁they ▁successfully ▁escape ▁with