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.

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

For the first time in five years, “Chicago Med,” “Chicago Fire” and “Chicago P.D.” are crossing over on Jan. 29. Here's how ...

The highly-anticipated three-hour crossover event known as One Chicago is extending fans a unique opportunity to participate ...

P.D.' showrunner Gwen Sigan promises 'some really fun character pairings between all three shows that are unexpected.' ...

“Chicago Fire” airs at 9 p.m. Wednesday ... FuboTV has a SEVEN-DAY FREE TRIAL. Channels include AMC, E!, HGTV, ESPN, NBC Sports, NFL Network, FS1, MSNBC, Food Network, Great American Living ...

NBC's three One Chicago shows are coming together for the first time in five years on Jan. 29 The first One Chicago crossover ...

Chicago Fire Season 13 Episode 9 wastes no time in giving answers to the fall finale’s biggest twists. Get the scoop on what’s coming up next.