In Season 13, the BAU team recovers from a coordinated strike against them that occurred while hunting down their arch nemesis, Mr. Scratch, and suffers a tragic loss. Also, SSA Matt Simmons (Daniel Henney) assists the Team with rescuing one of their own, and Dr. Reid (Matthew Gray Gubler) works to re-integrate with the team following his prison stay as they take on some of their most twisted cases yet.