How did the team react to the return of Shemar Moore's Derek Morgan?
That was revealed on Criminal Minds Season 12 Episode 22 when the former BAU team member booked a short-term return to help his team take down serial killer and escaped convict Mr. Scratch.
Meanwhile, Reid tried to make sense of his new normal in the wake of what went down for him on the inside.
This also meant going head-to-head with an old nemesis.
Use the video above to watch Criminal Minds online to get up to speed with the latest twists.
Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.