The much-anticipated One Chicago crossover is set to shake things up for several beloved characters, but none more so than ...

There's a shift in show order for the crossover event. “Chicago Fire” will air first at 8 p.m., followed by “ Chicago Med “ at 9 p.m., with “ Chicago P.D .” concluding the event at 10 p.m.

Brett and Violet take a domestic violence situation into their own hands in Chicago Fire season 12, episode 3. Don't miss a ...