Kester (Nicolas Cage) is a terrorist. He wanted to kill agent Sean (John Travolta), but he killed Sean's son by mistake. Sean and Kester had an irreconcilable feud. After arresting Kester, he thought he could put an end to it, but he learned that Kester had dropped a gas bomb in a crowded corner. In order to find out the location of the bomb, Sean decided to use plastic surgery to replace the unconscious Kester's face with his own, and pretend to be Kester to get his brother to tell the truth. This matter is highly confidential to the FBI, and only a few people know about it. Kester woke up, and at this time he had Sean's face. So he decided to play along with the plan, and after killing the insider, he became Sean...