In this chilling prequel to , the most devastating terrorist attack ever recorded on American soil begins and endswithout spilling a single drop of blood. Four jihadists, armed with nothing more than a briefcase and a pen, walk nonchalantly through the country's busiest airports, killing time and killing people. A deadly mist, laden with a universally lethal virus, trails close behind them. Their goal: foment a global pandemic. Their vision: Armageddon, where only the Chosen Ones - those loyal to the United Islamic State - survive. The job of stopping them falls squarely on the shoulders of one man, Commander John Hart, but will he be in time?