Bradley's longtime adversary Ali al-Haqani has lived to see another day—and he's elevated the devastation to a catastrophic level with global consequences.
 
Bradley, with the help of Dr. Audrey Howe of the Centers for Disease Control, must discover what's causing people in the heartland of the U.S. to die in record numbers.
 
In the midst of the global chaos, a matter hits Bradley too close to home, and it may become a distraction.