Based on the true story of the most dangerous serial killer in Texas. FBI agent Karl Helter and his partner Rebecca Lombardi are close to robbing a sex trafficking ring. When they realize that their investigation has intersected with that of a brutal serial killer, they are joined by Texas Ranger Biron Crawford, who in this case is years old. When Rebecca herself is kidnapped for her purpose and her life is in balance, Carl and Byron have precious hours to collect the last clues and complete the famous “Truck Stop Killer”.