简介：CharlieReedisamaninadeadendjob.Butwhilehecontemplatesachange,heissuddenlypromotedtothetopsecuritylevelofhiscompanyandaskedtotakeoverfromacolleaguewhohasmysteriouslydisappeared.However,notsoonaftertakinguphisnewpositionCharliereceivesanunidentifiableencodede-mailcontainingsometopsecretinformation.