Chicago P.d. - Season 4 | Chrome |

Season 4 featured several "One Chicago" crossovers that connected the unit to Chicago Fire and Chicago Med :

Midway through the season (Episode 8), Antonio leaves the Intelligence Unit to join the State’s Attorney’s office as a chief investigator, a move designed to lead into the spin-off Chicago Justice . Chicago P.D. - Season 4

A cross-show romance developed between Antonio Dawson and Chicago Fire 's Sylvie Brett. Season 4 featured several "One Chicago" crossovers that

A crossover with Chicago Fire (Season 5, Ep. 9) where Kelly Severide is suspected of vehicular manslaughter. 9) where Kelly Severide is suspected of vehicular

's fourth season is a pivotal chapter that fundamentally altered the series' trajectory through major cast departures and a shift toward more topical story arcs. Airing from September 2016 to May 2017, the season consists of 23 episodes focused on the professional and personal fallout of Sgt. Hank Voight's (Jason Beghe) vigilante actions. 🎬 Key Character Departures and Arrivals