From the initial weather alerts to the evacuation to the aftermath, Hurricane Katrina: Race Against Time explores the effects of a natural disaster that changed America. With rarely viewed archive footage, first person testimony and interviews with the major government and emergency response personnel, this five-part series reveals Katrina’s definitive story for the first time. Watch Hurricane Katrina: Race Against Time on Monday 28th July from 8pm on National Geographic UK. Streaming soon on Di

On Air Live: The Hurricane Katrina Tapes, 20 years later. Untold stories of courage, chaos and resilience return. Anchored by Brian Entin, this NewsNation special features unseen footage, raw home movies and firsthand accounts. Sunday 8p/7C. Find NewsNation: NewsNationNow.com | NewsNation