9/11 is a day we will never forget. British BAFTA winning documentary film maker Paul Berriff was in the street beneath the twin towers filming with the New York Fire Department's assistant commissioner when the towers collapsed. Paul was knocked unconscious as the South Tower came down on top of him. He was laying in the debris when 30 minutes later the North Tower also collapsed on him. Paul tells the story of what happened to him, his family, his film crew and others leading up to that terrible event on September 11th 2001. It was a day when Paul had planned for his family to be sightseeing on the roof of the tower at the time the planes struck but, through fate, his plans had to be cancelled at the last minute. This is a dramatic and emotional presentation with film and audio from one of the hijacked planes as well as from those trapped in the towers. Paul tells the minute by minute drama of himself as he arrived under the towers that morning, the collapse and how he miraculously survived with his life and film footage which become some of the most iconic imagery filmed that day.