Fleeing to Atlanta to seek refuge in the aftermath of a violent act, Sara Linton becomes unwittingly enmeshed in a case involving a tortured young ER patient, a situation that is investigated by special agents Will Trent and Faith Mitchell.

On a serene summer Sunday, a routine admission for a run-of-the-mill surgery at Atlanta's Emory Hospital goes tragically wrong, setting off a catastrophic wave of destruction that sends the facility and the surrounding area into lockdown. One of the city's largest and most prestigious institutions, Emory is situated near the Centers for Disease Control, the FBI counter-terrorism headquarters, and a large children's hospital. Anything that happens...