Before sunrise on August 29, 2005, Nolan Haynes (Paul Walker from Fast & Furious) arrives at a New Orleans Hospital with this pregnant wife, Abigail (Genesis Rodriguez from Identity Thief), who has gone into early labour. What should be one of the happiest days of his life quickly spirals out of control when the goes tragically wrong and Hurricane Katrina ravages the hospital, forcing an evacuation. Nolan and his newborn baby are soon cut off from the world by power outages and rising flood waters. With his baby completely dependent on a ventilator Nolan tackles one life-and-death threat after another, fighting to keep his daughter alive, as minute by agonising minute passes…becoming unimaginable hours.