Rogue CIA agent Angel Stone sets off a 'dirty bomb' in Honolulu, Hawaii, killing thousands and creating widespread panic. She threatens to do the same to several other American cities, including Washington DC, unless she and her shadowy group of terrorists are paid one billion dollars. The FBI launches a massive worldwide manhunt to find the elusive, ruthless criminals. Leading the search is FBI Assistant Director Erin Welch. She hires ex-Special Forces operative J.T. Ryan to help hunt down the terrorists. As the clock winds down to disaster, Ryan sets off in a frantic, heart-pounding chase that takes him across the U.S. and Europe. Can he and Erin foil the deadly plot and avert catastrophe in time?