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

It’s three hours of the One Chicago dramas tonight, Wednesday, Jan. 29. And this is not like the usual three-hour block. We have the One Chicago 2025 crossover event happening! Yes, we have what will feel like a three-hour movie tonight.

LaRoyce Hawkins of "Chicago PD," "Chicago Fire's" Miranda Rae Mayo, and Darren Barnet from "Chicago Med" talk about the first Wednesday night "One Chicago" crossover event in more than five years. The casts of all three shows will combine for a full three hours of pulse-pounding prime time action.