" Route 66 " is the 200th episode of Criminal Minds (S9E5), originally aired on October 23, 2013, focusing on a major trauma for Unit Chief Aaron Hotchner while the team investigates a kidnapping in Kansas. The episode blends a tense BAU case with a surreal, dream-like journey for Hotch, who hallucinates a conversation with his late wife, Haley, and serial killer George Foyet, all while undergoing emergency surgery.
You can read a full recap of the episode on the Criminal Minds Wiki . Route 66 - Criminal Minds Wiki [S9E5] Route 66