
Chicago P.D. had a pair of ongoing arcs through the first half of Season 13, with the ongoing pursuit of Raymond Bell leading to the fall finale cliffhanger (and a ticking clock in the winter premiere) and Voight chasing down leads about his blackmailer. The sergeant finally discovered that none other than Internal Affairs District Commander Devlin was behind the blackmail, but it didn't come out of nowhere after Voight's actions early in the season.
It remains to be seen if Devlin is going to strike back again in the 2026 TV schedule or if we should start waiting for the next internal threat for the Intelligence Unit from within the CPD. Whatever the case may be, I still love that Voight made Devlin a problem for himself who was – to quote showrunner Gwen Sigan – ”such a different threat.” What goes around does sometimes come around, even for Hank Voight.