Spoilers ahead for Episode 4 of Chicago P.D. Season 13, called "Root Cause" and available streaming now with a Peacock subscription .

Chicago P.D. had a lot of loose ends to tie off with the first few episodes of the fall 2025 TV schedule , starting with Voight needing to get the Intelligence Unit back together, putting Burzek through the emotional wringer as parents, introducing the newest member of the team , and now possibly debuting the big bad of Season 13. That big bad reveal came along with a taste of what might be a pretty tragic backstory for Voight himself, but I'm still thinking about who I really missed from the episode, especially with the upcoming absence of one member of the team.

A New Chicago P.D. Big Bad?

While Chicago P.D. is generally a procedura

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