During the 1977 El Salvadoran presidential election, public unrest is at an all-time high over fears of election fraud. In the midst of a Marxist-Leninist guerrilla insurgency by the Farabundo Martí National Liberation Front, the anti-communist military dictatorship uses death squads to abduct, torture and "disappear" anyone who speaks about their terrible human rights record. ...。1946年,国内局势风诡云谲,内战一触即发,一拨38人的顶尖军事精英避战乱正启航赴美……然而一本意外遗落的笔记本,却揭露了在这拨人中存在卧底!他们正酝酿着惊天密谋!而此刻在特工遍布的南京,美国五星上将马歇尔、国民党高管破解了卧底疑云,暗中勾结,欲除去卧底幕后的“一号目标”,各方围绕“谁是卧底”进行着一场惊心动魄的博弈。究竟这神秘的一号目标何时现身?能否扭转内战乾坤?一切仍是谜题……。