A search for his wife's killer, a shooting gone bad, victims, vengeance, politics, bombs and kidnapping compel Homicide Sergeant Harding Knox to struggle with life, a suspended career and revenge. Lara Conlon-Knox never saw it coming, the truck that took her life. Her husband, Detective Sergeant Knox, is devastated. Life, except for the search for Lara's killer, had lost meaning. An off duty detail to occupy time ends in disaster. A dismissed corporate executive goes gunning for revenge, the life of the city's minority leader, and that of Knox's partner are taken. The actions of Sergeant Knox are brought into question, placing him and his career in jeopardy. Against policy and orders, Knox continues his quest for his wife's killer when a stranger in the middle of the night provides a clue. Then a voice, taunting, haunts Knox from cell phones with explosive results. Another man puts Knox in his gun sights, a kidnapping and car chase crashes through an unsuspecting Great Lakes city. Each person possess his own reason for revenge, as does Knox for the death of his wife and that of a retired cop blown up in a Wisconsin woods. The pursuit of vengeance is a persistent and perilous journey.