After their flight home from a four-day conference in Denver, Molly and Mason make an intriguing discovery while waiting to exit the aircraft. After an unsuspecting glance, Molly believes she saw Vincent Toler, the suspect in a three-year-old, double homicide case, exit the plane before them. She was right. He was returning to the crime scene, only to exact his revenge and clear his name. As Mason and Molly Hunter begin working on this cold case, they unravel more about the story than they bargained for. Together, they assemble their team of specialists and are forced to combat ruthless characters who will do whatever is necessary to keep from being exposed. Molly and Mason's efforts soon become a race against time to uncover the whole truth and bring to justice those who actually were implicated in the gruesome homicides. The criminal element they must deal with, that was one step ahead of them from the beginning, prevents their every move. What initially to them was about justice and getting the truth out to the public, takes on an everyday determination for the two of them just to stay alive.