When a prominent doctor is found dead in a ritualistic slaying, the team must race against the clock to hunt down a religiously motivated serial killer. Also, Scola faces a life-or-death decision.
Tropes:
- Dead Guy Junior: Stuart and Nina's newborn son, Douglas, is named after Stuart's late brother.
- Earn Your Happy Ending: After everything Stuart and Nina faced in Season 5, they and their FBI teammates welcome their newborn son, Douglas.