On a hot summer night, a scientist from the Centers for Disease Control is grabbed by unknown assailants in a shopping center parking lot. One month later, the serenity of a sunny Sunday afternoon is shattered by the boom of a ground-shaking blast --- followed by another seconds later. One of Atlanta’s busiest and most important neighborhoods has been bombed. Medical examiner Sara Linton and her partner Will Trent, an investigator with the Georgia Bureau of Investigation, rush to the scene --- and into the heart of a deadly conspiracy. When the assailants abduct Sara, Will goes undercover to save her and prevent a massacre --- putting his own life on the line for the woman and the country he loves.