A string of arson cases brings Emily to the historic city of Charleston right as she's in the middle of trying to find the woman who killed her husband. Her personal investigation will have to wait, however, because the local community is on edge, having already lost two firefighters in these tragedies. But before she can get very far, more blazes erupt throughout the city, causing a panic within the ranks. In each one, the victim is burned alive, from both the inside and out. And at each scene, a strange symbol remains in the rubble, leaving Emily to believe they're working with a sick and twisted individual who has their sights set on something even bigger. With the number of fires increasing by the day, and a city in panic, Emily must race against the clock to uncover the killer before they burn the entire city down with their rage.