Against a morning sky, a mushroom cloud spirals heavenward. A nuclear bomb has detonated in the heart of Washington D.C. incinerating 15,000 residents of the capital city of the United States in just 15 seconds. More than 50% of the population living within a mile radius of the explosion are either dead or severely injured. The next 24 hours will determine whether the rest of the city lives or dies. To survive this horrific ordeal they will need a plan. And luckily there is one. But will it work? For the first time on DVD, The US Department of Homeland Security reveals the most detailed and comprehensive plan to save America should terrorist groups become armed and attack with the most frightening of weapons - the nuclear bomb.