NBC’s One Chicago is airing its first crossover in five years tonight. Here’s how to watch the epic event featuring "Chicago ...

The crossover starts at 8 p.m. with "Chicago Fire" followed by "Chicago Med" at 9 p.m. and "Chicago P.D." at 10 p.m.

Chicago Fire airs on NBC every Wednesday at 9 pm ET/6 pm PT as part of NBC's One Chicago block. If you prefer to stream episodes instead ... monthly for commercial-free viewing.

Chicago Fire ... episode to revisit this particular holiday season, though, is the story. The episode largely focuses on Joe Cruz (Joe Minoso) and the struggles he's undergoing in trying to free ...

Chicago Fire is a long-running, highly-praised American procedural following the lives and relationships of those who work inside a firehouse. Based in the fictional Firehouse 51, each episode tracks ...