The BAU searches for a subject who is targeting prominent members of the community.
Abby is encouraged when her unstable mother gives her enlightening advice in a rare moment of clarity; Dr. Weaver ignores Dr. Carter's interest in the chief resident position.
Grace and Carlos work together when they suspect a young woman was a victim of a black market organ trafficking ring; Owen's brother Robert comes to visit and meet T.K., but surprises Owen with news that can affect the Strand family.
Crew members become stranded aboard a disabled Klingon vessel after they are ambushed by a female Klingon.
The serial sniper the team is trying to catch begins to taunt Mick.