Houston Homicide Detective Jack West is back at work. A fresh case he's working might be connected to a murder case fellow detectives Chang and Severson are working. The medical examiner's report shows some similarities to each murder, but the victims are strangers with nothing in common. A third murder victim found under a bridge on the Buffalo Bayou confirms Houston has a serial killer on the loose. Three very diverse people are dead—are these hate crimes, and if so, how many more will die? The clock is ticking; Jack and his team need to catch this killer before another body shows up.

Cyrus Shelton has spent the last twenty-three years locked up in the Huntsville State Penitentiary with only one thing on his mind - revenge on the arresting detective, Frank Windom, and his lousy defense attorney, Jonell Simone. Now paroled and having learned Windom had the nerve to die, he sets his sights on Windom's former partner, Jack West. When a cryptic letter addressed to him AND Frank arrives, Jack is curious but dismisses it; he is deeply involved with a triple homicide. The Attorney General’s Office steps in ordering Jack to stand down from his investigation and he knows his case goes deeper than just a homicide. With no murder case to work, he turns his attention to the cryptic letter and finds out Jonell received a similar letter. Cyrus Shelton is on his murder rampage and the gloves come off. Jack wants revenge. Now it is personal.

In the past fourteen months, Detective Jack West was ordered by the Attorney General’s office to stand down on his homicide case; he punched out his captain and resigned his position. Upon his return to the homicide squad, his new captain, Veronica Masters, has him working cold cases, easing him back into the swing of things. But it’s not long before Jack wants answers on his triple-homicide and takes matters into his own hands. In a swift change of events, Jack is deputized by the DEA and sent undercover to Mexico on a case which has ties to his unsolved murders. Trying to tell the good guys from the bad guys becomes a challenge, but there’s one thing Jack West is sure of…watch your six and trust no one.