Ex-con Zack Taylor is a man drifting through life, haunted and guilt-ridden from a past gunshot tragedy. When his friend dies in Maine of an apparent suicide, Zack is driven to pursue the truth. With only his wits and physical skills, he takes on life-threatening opponents. Despite finding a new love, his rage and ghosts drive him closer to the edge as he takes ever-greater risks with the law and his life.