Here's the official guide of Criminal Minds season 8 episode 22 "#6". This episode airs on Wednesday, May 15 on CBS.
THE BAU TRACKS AN UNSUB TARGETING PEOPLE IN DETROIT, AND BLAKE’S HUSBAND RETURNS WITH A CAREER-CHANGING JOB PROPOSAL FOR HER --
Guest Stars Include D.W. Moffett as Blake’s Husband James,
and Erin Cummings as Kidnap Victim Emma Churchill
- The BAU goes to Detroit to track an UnSub with a rapidly changing MO.
- Also, Blake’s husband returns from overseas with a life-changing career proposition for her.