The last time Federal Agent John Corey of the Anti-Terrorist Task Force heard from Khalil, he claimed he was defecting to the U.S.-only to unleash a deadly reign of destruction on American soil. As Corey and FBI agent Kate Mayfield chased him across the country, Khalil eliminated his victims one by one and then disappeared without a trace.


當時正在進行反恐行動的聯邦調查局探員約翰‧柯瑞聽凱利爾說他正打算投奔美國，沒想到在美國境內引發了一場毀滅。正當柯瑞與FBI探員凱特‧梅費爾德走遍整個美國追捕凱利爾之際，凱利爾卻先後殺死多人，然後消失得無影無蹤。