Chicago P.D. is one of NBC's highest-rated dramas. The police series wrapped up a part of its story when the season 11 finale hit the screens a few weeks ago. Fans bid farewell to Tracy Spiridakos as Detective Hailey Upton and also welcomed back one of the show's most acclaimed characters.

After a season of changes, Chicago P.D. is gearing up for even more drama, romance and crime solving action during the back half of season 12. "We have quite a lot coming with our new deputy chief character,

Chicago P.D. Season 12 finally returns with a new episode on January 8. It’s been a busy season for Intelligence, including two new folks coming to work for Hank Voight (Jason Beghe). As a reminder, Detective Hailey Upton (Tracy Spiridakos) left Chicago during the Season 11 finale.