Pete Garrison (Michael Douglas) is a United States Secret Service agent and one of the personal bodyguards for First Lady of the United States Sarah Ballentine (Kim Basinger), with whom he is having an affair. He is one of the oldest and most experienced agents, having been involved in Reagan assassination attempt. His close friend and fellow agent, Charlie Merriweather (Clark Johnson), is murdered. Garrison gets word from a trusted informant that the killing of Merriweather is related to an assassination plot against the President. The intelligence provided by the informant reveals the presence of a Mole (espionage) with access to the President's security detail.