With Gideon sidelined, the BAU heads to Tennessee in an attempt to get inside the mind of a psychotic killer with erratic fantasies.
Alan Shore decides to represent an ex-lover who was institutionalized after threatening his life; Denny Crane's behavior causes concern among the partners.
Peg tries everything she can think of to renew Al's interest in romance.
Cindy learns she was adopted and sets out to find her natural mother; Drew's sudden lack of interest in Elizabeth irritates her.
MacGyver travels to bayou country where he stalks a renegade undercover agent who has abducted Thornton's ex-wife and her teenage son.