The best friend of a teenage murder victim is abducted, and the team race against time to find the killer before it is too late.
The unit investigates when several federal government employees succumb to symptoms of a heart attack. Meanwhile, Reid anxiously awaits his trial date.
Morgan brings the unit new information in the case against Mr Scratch, a serial killer and escaped convict who has been wreaking havoc on the team.
When Reid fears his mother has been abducted, he asks the BAU to investigate while he's stuck in prison.
