Danny Summersend is determined to find out the truth about his twenty-six year old daughter's death. Estranged for years, Jillian was his only surviving family member and his gut tells him that the hit-and-run accident that killed her was no "accident."

Despite cautioning from his friend, Lazaro, about his loose-cannon temperament, Danny, an ex-hit man, leaves his Texas ranch heading to Detroit to find the person driving the other car.

When he receives information describing a woman who allegedly killed his daughter because of ill-found suspicion about his daughter's involvement with her husband, Danny's need to find answers turns into a deadly determination to murder the woman. As he follows her home from work, Lazaro again warns him of the dangers of having a personal reason to kill. It's not just another hit, he cautions. Danny, so blinded by revenge, ignores Lazaro and enters the woman's condo, waiting for the right moment to shoot her. In her kitchen while her back is to him, Danny walks up behind her and aims the gun at the back of her head. But when she turns around, he's sickened and startled to see that she looks young, too young to be the forty-something woman whose homicidal driving turned his daughter's car into a scrap metal coffin. He leaves the young woman shaking with fear in her condo and tries to put her and the mistake he almost made out of his mind.

Moving along to an impromptu plan 'B', Danny finagles his way into a job at the same engine factory where his daughter worked and where Danny believes all of her troubles started. But incidental run-ins with the young woman he learns is only twenty-years old, leaves him wondering if it is possible that she is, somehow connected to his daughter's death. With Lazaro's help, Danny learns that the young woman, Zada Elisabeth Roundtree, has her own agenda, uncovering a drug smuggling ring that will leave millions of dollars up for grabs. When another supervisor turns up dead, killed in a gruesome hit-and-run similar to Jillian's the suspicious circumstances force Danny to take another look at Zada. It soon becomes evident though, that while not completely innocent, she's no killer. Danny finds himself wanting to protect her from falling deeper in a mess that she's ill-equipped to handle. Zada proves to be a handful, even for Danny. Determined to do things her way or not at all, she and Danny butt heads. Though he tries to ignore it, he becomes attracted to this spirited young woman who reminds him of his deceased wife, Jillian's mother. The similarities drag up memories Danny has tried to suppress for years, so he struggles to distance himself from Zada, sometimes cruelly so.

Yet, when Jill's real killer manages to distract Danny long enough to put Zada's life in danger, he must then decide what means more to him; revenge or Zada, who somewhere along the line, became entangled in his heart.