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

The One Chicago crossover starts with Firehouse 51 responding to an explosion at a warehouse on Chicago's South Side. Initially believed to be an industrial accident, the team discovers evidence ...

The first three-hour crossover in more than five years unites the crews from 'Chicago Fire,' 'Chicago P.D.' and 'Chicago Med.

How hard is it to create a three-episode crossover? Chicago Fire showrunner Andrea Martin dishes on that & more in this ...

You can catch up on Part I and Part II of the crossover at Hidden Remote. I’m continuing the story here. Caution: This post ...

The latest One Chicago crossover, 'Into the Trenches,' put Chicago’s finest to the test ... He first told everyone to get out because the building was unsafe, but Severide, Herrmann, and Mouch ...

What did you think of the epic One Chicago crossover "In the Trenches"? Read our full review of the three-hour spectacle now.