Watch Chicago P.D. Season 4 Episode 23 Online. Best and Free Online streaming for Chicago P.D. TV Show. We picked the best sites to stream s04e23. Simply pick a site below and click "Watch Now!" button next to it. Some of the links may be broken, please upvote the working and good links so other users see those links for Chicago P.D. Season 4 Episode 23 s04e23 at the top of the list.