Was Reid's mother abducted?
That was addressed on Criminal Minds Season 12 Episode 21 when the character received some frightening intel while stuck in prison.
The BAU quickly went into action in order to find out the truth about their former colleague's mother, but they were shocked at just how difficult the mission was.
With little trace of the mother, it became clear someone was covering their tracks.
Use the video above to watch Criminal Minds online to get up to speed with the latest developments for the characters on this hit CBS series.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.