美國主要城市遭國際恐怖組織發動攻擊,迫使美國宣布戒嚴。空軍艦隊搭配無人自動機械巡邏系統,對民眾進行監督反恐。某天,一名巡邏機駕駛赫然發現自己因宗教信仰而被列為監測對象,因此他私自存取高機密資料,並帶著妹妹逃入紅區尋求庇護。深怕機密資料落入敵人之手的美軍高層,決定下達密令即刻追緝…In the midst of a terrorist-induced crisis the United States has declared martial law. Privatized defense forces and a state-of-the-art drone patrol system now monitor citizens and locate any new terrorist activities. Patterson Endcott, a computer scientist and drone pilot, is put on a hit list due to his religious beliefs and increasing doubt in the morality of his job. He and his sister, Samantha Endcott, are forced to find a place of safety beyond the watchful eyes of the surveillance drones. Considered a top level security threat by the government, the two are pursued by super soldiers, called Erasers, to capture them dead or alive.