Season 12, Episode 04 – “Keeper”
A serial killer is loose somewhere on the Appalachian Trail in a remote part of Virginia.
Special Agents Jason Gideon and Aaron Hotchner head up the FBI’s most elite profiling team – experts in analyzing criminal minds. Each team member has their specialty. There’s Elle Greenaway, who has a background in sexual offences; Derek Morgan, who focuses on obsessional crimes; Special Agent Dr. Spencer Reid the smart-but-socially-challenged genius; and Jennifer “JJ” Jareau, the rookie. With each mind-blowing case, they put their lives on the line as they match wits with the most ruthless criminals on earth.