T he recent One Chicago crossover has left fans with their hearts in their throats, especially concerning the fate of Trudy Platt, played by Amy Morton. In an attempt to stop one

NBC’s One Chicago is airing its first crossover in five years tonight. Here’s how to watch the epic event featuring "Chicago Fire," 'Chicago Med," and "Chicago P.D.."

The first One Chicago crossover in five years provided fans with plenty of non-stop action, heart-stopping moments and some fun (but strange) pairings between characters we'd never really seen interact all that much.

The One Chicago universe pulled off the unthinkable: integrating over 20 characters into one thrilling and coherent storyline. In a three-hour event involving Chicago PD, Fire, and Med, the writers achieved a resounding success with the crossover on NBC,