Capitol Policeman John Cale has just been denied his dream job with the Secret Service protecting President James Sawyer. Not wanting to let down his little girl with the news, he takes her on a tour of the White House, when the complex is overtaken by a heavily armed paramilitary group. Now, with the nation's government falling into chaos and time running out, it's up to Cale to save the president, his daughter, and the country.

Just as her life is coming together, a young woman experiences a terrible tragedy when her boyfriend is murdered by an intruder from whom the woman herself barely escapes. The police capture a man they believe to be the killer, but the young woman, still unsettled, has her doubts. Things take a frightening turn when she meets her friend's new boyfriend and suspects him to be the killer.