失去了心爱的女人，波恩（马特•戴蒙 饰）面临更为艰难的日子，他努力回忆，却只能在睡梦中被脑海里一知半解的闪回所惊醒，依然无法记起自己的身份。 　　但是波恩注定不是平凡人，不等他冷静下来好好“寻找回”自己真正的身份，中情局派出的杀手又接踵而至。在接连的几次较量之后，杰森•伯恩终于被彻底激怒，决定反戈一击——他主动追击杀手，到过莫斯科、马德里。巴黎，也在伦敦和丹吉尔做过停留。 　　随着问题一个一个解决，杰森回到了纽约，在那里，他将会找到一切的答案，寻回自己的身份。Bourne is once again brought out of hiding, this time inadvertently by London-based reporter Simon Ross who is trying to unveil Operation Blackbriar--an upgrade to Project Treadstone--in a series of newspaper columns. Bourne sets up a meeting with Ross and realizes instantly they're being scanned. Information from the reporter stirs a new set of memories, and Bourne must finally, ultimately, uncover his dark past whilst dodging The Company's best efforts in trying to eradicate him.