A computer genius and an Iranian agent collaborate to steal U.S. Department of Engergy plutonium and uranium and kidnap American scientists to make atomic bombs.  All that stands between the world and nuclear catastrophe are the scientists, who know they must escape ... escape or die.  The FBI mounts its investigation to find the nuclear material while simultaneously fending off bureaucratic interference and media leaks. The wife of a kidnapped scientist is threatened to keep her quiet. After being assaulted, she realizes her family's ultimate fate sets out to free her husband and foil the kidnappers. The climax occurs as radioactive debris rains down on a Tennessee city.