Based upon real tale of Texas' most hazardous serial killer. FBI agent Karl Helter and also his partner Rebecca Lombardi are very near to breaking a sex-trafficking ring. When they recognize their investigation has crossed the path of a ruthless serial awesome, they join Texas Ranger Byron Crawford, who has years on this instance. When Rebecca herself is abducted by their target and also her life hangs in the balance, Karl and Byron have valuable few hours to assemble the last ideas and put an end to the notorious 'Vehicle Quit Killer'.