The OneChicago three-hour event begins with 'Chicago Fire' on Wednesday, Oct. 16 at 8 p.m. ET/PT on NBC, followed by 'Med' and 'PD.'
ET spoke with the 'Chicago Fire' stars at #OneChicagoDay to get the scoop on what's in store at Firehouse 51.
ET spoke with the 'Chicago Fire' stars at #OneChicagoDay, where they opened up about Yuri Sardarov and Monica Raymund's departures.
ET spoke with the 38-year-old 'Chicago Fire' star at #OneChicagoDay, where he shared whether Severide is ready for marriage.
'They're enjoying each other's company,' Spencer tells ET of the brewing relationship.
The actor tells ET why he thinks Kidd may be 'the one' for Severide.
Co-creator Derek Haas exclusively tells ET that someone will be saying 'I do' this season.
Showrunner Derek Haas breaks down the decision to say goodbye to a series regular and what this means for the firehouse moving forward.
ET exclusively debuts a first look from Wednesday's episode.
ET exclusively debuts a first look from an all-new episode, airing Wednesday, March 27 at 9 p.m. ET/PT on NBC.
ET spoke with the 37-year-old 'Chicago Fire' star at the Carousel of Hope Ball on Saturday.
ET was invited to the set of all three hit NBC 'Chicago' series ahead of the premiere of One Chicago Wednesdays on Sept. 26.
ET has your first look at One Chicago Wednesdays, the first time all three of NBC's hit series, 'Chicago Med,' 'Chicago Fire' and 'Chic
The beloved actress died in March at the age of 49.
