Jesse Quantrall, Texas oil magnate and renowned horse breeder, takes stock of his life after the death of his father. When his on-again, off-again, love is kidnapped, Jesse risks his life to discover the startling truth behind her disappearance. Battling the chaos of guns and violence, Jesse finds new strength and purpose.

When Quantrall Investigations is hired to find Kent Lessard, a well respected Austin attorney, Jesse battles a vicious adversary. With his personal life in a shambles, he puts heartache aside and risks his life to find justice for his client.

While Jesse Quantrall searches three states for Ray Winger, a mentally ill cowboy gone missing, Jesse's youngest brother finds his girlfriend brutally murdered. Pressure mounts as Jesse is torn between helping his brother and finding Ray before he self-destructs.

When his partner in Quantrall Investigations is kidnapped and held for ransom by a biker gang, Jesse searches the countryside with his bloodhound, Red. After several attempts on Blaine's life, Jesse must come up with a viable plan to crush the club and keep his partner alive.

When Homicide detectives are stymied by multiple murders of young women in a rural area outside of Austin, Jesse Quantrall puts a hot new romance on the back burner. He and his team of investigators, use their unique skills and risk their lives to capture two bizarre killers.

While Jesse is focused on finding out who killed his ranch foreman and stole his prize Appaloosa stud, a previous case rears its ugly head, and the pressure mounts. When unexplained accidents cripple one of the Quantrall investigators and kill a long-time friend, Jesse digs deeper.

While trying to find a killer who is working through a list of principal players, from a ten-year-old trail, Jesse must face past demons of his own.

When a potential client is murdered before Quantrall Investigations is officially hired, Jesse and his team search for the killer on their own time. With added pressure coming down from the Governor, Jesse ramps up and tracks a serial killer all across Texas.

The Quantralls have new neighbors and Q.I. has a new assignment from the Governor. The deeper Jesse and Blaine dig, the more violent the resistance of the drug-dealing Tibando Brothers. Wounded both physically and emotionally, Jesse gives it all he's got to bring the brothers down.

Race is released from Huntsville Prison and tries to resume his relationship with Annie right where they left off six years earlier. With his old club trying to eliminate him, Race launches a vendetta against the man who has taken his place. Annie tries to help the father of her son and Quantrall Investigations follows her to Vegas to protect her.

When the Governor's executive assistant is raped and murdered, Jesse works with the Texas Rangers to find the killer. His foray into hill country becomes a labyrinth of lies and deceit. Pressure mounts as the investigation bogs down and Jesse is filled with self-doubt. Does he have what it takes to get the job done?

When one of Jesse's job applicants is found floating in the Colorado River, QI mounts an exhaustive search for the killer. The trail leads them deep into bayou country. With Blaine distracted by trouble Race is causing at the ranch, Jesse and Farrell are on their own.

Threats on the Governor's life intensify and Jesse is thrown into a chaotic whirlpool that might prove to be more than his damaged heart can withstand. Is it too late for Jesse to settle down and start the family he so desperately wants? Will he live long enough to find out?

After Jamie is shot on the job, Jesse is guilt-ridden and takes her home to Quantrall to heal. Governor Campbell's insistence that the Blackmore Agency help out law enforcement in Houston results in disaster for Jesse. His dreams and plans for the future disintegrate in the worst way imaginable.

Jesse Quantrall and The Agency crew discover how dangerous the oil business can be when an old friend of Jesse's father is brutally murdered. As Jesse wades through layers of lies and deceit, justice seems out of reach.