Agent Pete Garrison (MICHAEL DOUGLAS) is something of a legend inside the Secret Service detail at the White House. After all, he took a bullet for President Reagan years ago and now serves directly protecting First Lady Sarah Ballentine (KIM BASINGER). While she publicly stands by her husband, President John Ballentine (DAVID RASCHE), their personal relationship is anything but happy, resulting in her having an affair with Pete.
Although he knows he's playing with fire, he thinks he has that under control. That is, until a friend and fellow agent is murdered, his longtime informant Walter Xavier (RAYNOR SCHEINE) informs him of a mole inside the Service who wants to kill the President, and he receives a packet of blackmail photos of him and Sarah.
He reports the assassination plot to Special Agent in Charge William Montrose (MARTIN DONOVAN) and it's not long before the Service's top investigative agent, David Breckinridge (KIEFER SUTHERLAND) -- who was working the murder case with rookie agent Jill Marin (EVA LONGORIA) -- is assigned to figure out the mole's identity. Considering that his friendship with Pete ended after believing Pete had an affair with his wife, David casts a wary eye toward his former mentor, unaware that a mysterious figure, The Handler (RITCHIE COSTER), is behind the plot.
But when a number of clues and incidents point all of the evidence toward Pete, the veteran agent goes on the run. From that point on, he tries to stay a step ahead of David and the other agents, all while working to prove his innocence and figure out who's really behind the plot to kill the President.