A mysterious serial arsonist has been setting fires over the Witch Hollow area for months, and when a charred body turns up at the most recent arson scene, Faith and Jonathan are called to the scene. While Faith begins the process of identifying the victim and determining cause of death, Jonathan suspects the danger runs deeper than either of them could have predicted. As the number of fires, and the body count, grows, the partners will have to ask themselves what's most important — bringing down a killer, or finding the truth.