September 11, 2001 is one of the worst days in history. In Washington, D.C, the workers at the Pentagon have only just heard of the chaos going on at the New York World Trade Centre, but are unaware that they themselves have become a target. American Airlines Flight 77, a Boeing 757 aircraft, collides with the Pentagon killing 189. Pentagon 9/11 recreates the events leading up to the explosion at the Pentagon.