Starting 31st August at 9pm, 9/11: One Day in America marks 20 years since the tragic events of September 11th 2001. This groundbreaking documentary series tells the definitive story of the day through the experiences of those who were there. | National Geographic UK

9/11: One Day in America is a gripping six-part documentary produced by Dan Lindsay and TJ Martin, which gives a personal account on the events on the fateful day of 11 September 2001. | National Geographic Africa

Don’t miss 9/11: One Day in America. Available to catch up on demand now, this groundbreaking documentary series tells the definitive story of the tragic events of 11th September 2001 through the experiences of those who were there. Watch on Sky, NOW, Virgin, BT, TalkTalk and TV Player. | National Geographic UK

20 years ago the world changed forever. From National Geographic and National September 11 Memorial & Museuml, 9/11: ONE DAY IN AMERICA is a six-part chronicle of the events of that day, from the gripping stories of first responders and survivors. Premieres Aug 29 at 9/8c on National Geographic TV #911OneDayinAmerica | National Geographic Documentary Films