The relatively new Highway Serial Killer Database reveals an interstate serial killer who abducts then strangles women without sexually assaulting them.
The BAU team travels to San Francisco to investigate the murders of several homeless men and teams up with a separate group of BAU operatives who are working another case they think is connected.
The team, including Garcia, go to the small town of Franklin, Alaska, to catch a rapidly escalating serial killer before the locals take justice into their own hands.
The BAU team is on the trail of a serial killer targeting families throughout the Midwest. Meanwhile, Morgan is concerned when Ellie runs away from her foster family and pays him a visit.
When a boy is found murdered on the Appalachian Trail, the BAU team goes deep into its forests in search of a man lurking in the wilderness who is targeting children.