The latest threat against the Intelligence Unit cannot be neutralized by good old police work and some lawbreaking. Reid (Shawn Hatosy) has his fangs inside Voight (Jason Beghe) and his people in the Chicago P.D.Season 12 finale. He has them where he wants them, but they try to make sly attempts to escape. "Forced to cease operations while under investigation by Internal Affairs, Intelligence goes off-book to bring down Reid. Ruzek (Patrick John Flueger) and Burgess (Marina Squerciati) consider delaying their nuptials amid the uncertainty," the logline for Chicago P.D. Season 12, Episode 22, "Vows," teases. "He’s a formidable opponent…with plenty of cops who back him up,” showrunner Gwen Sigan told TV Insider when previewing the season finale. “The team’s job and the future of Intelligence are on the line, leaving Voight to battle his darker instincts," she added.