PORTSMOUTH, Va. (WAVY) – NBC’s popular Wednesday night dramas are coming together for one big crossover event. One Chicago starts at 8 p.m. with Chicago Fire followed by Chicago Med and then Chicago PD. Stars, Darren Barnet from Chicago Med, Miranda Rae Mayo from Chicago Fire and LaRoyce Hawkins from Chicago PD joined Chris Reckling on HRS with a preview. The One Chicago crossover event is Wednesday, Jan. 29 beginning at 8 p.m.