▁find ▁proof ▁behind ▁the ▁scenes ▁that ▁Lex er ▁and ▁Mid west ▁are ▁responsible ▁for ▁the ▁lack ▁of ▁sufficient ▁power . ▁The ▁Secretary ▁of ▁Energy , ▁Sh ir ley ▁Abb ott ▁( D ian ne ▁W iest ), ▁is ▁act ively ▁warning ▁various ▁polit icians ▁and ▁the ▁president ▁that ▁the ▁power ▁grid ▁is ▁too ▁out dated ▁to ▁handle ▁real ▁natural ▁dis aster s ▁and ▁that ▁it ▁is ▁too ▁vulner able ▁to ▁attack . ▁Dan ▁London ▁( A ri ▁C ohen ), ▁the ▁chief ▁engineer ▁of ▁Lex er , ▁has ▁also ▁repeatedly ▁war ned ▁Lex er ▁that ▁their ▁systems ▁are ▁too ▁vulner able ▁to ▁hack ers , ▁but ▁the ▁company ▁is ▁only ▁interested ▁in ▁going ▁with ▁the ▁che apest ▁options . ▁He ▁dec ides ▁to ▁blow ▁the ▁wh ist le ▁on ▁the ▁company ▁to ▁H ark in , ▁but ▁as ▁he ▁ref uses ▁to ▁appear ▁on ▁camera , ▁H ark in ' s ▁b oss ▁will ▁not ▁allow ▁the ▁piece ▁to ▁air . ▁ ▁As ▁the ▁storm s ▁approach , ▁early ▁storm s ▁knock ▁out ▁the ▁city ' s ▁primary ▁power ▁generating ▁plant , ▁and ▁B enson ▁is ▁forced ▁to ▁negoti ate ▁with ▁Lex er ▁for ▁even ▁more ▁power . ▁Not ▁real izing ▁the ▁dev ast ating ▁nature ▁of ▁the ▁storm s ▁coming , ▁London ▁sets ▁out ▁to ▁force ▁Lex er ▁to ▁listen ▁to ▁his ▁warnings ▁by ▁hack ing ▁the ▁system ▁and ▁causing ▁a ▁cas c ading ▁chain ▁reaction ▁that ▁knock s ▁out ▁all ▁of ▁the ▁power ▁in ▁Chicago . ▁Good man ▁and ▁his ▁team