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The March 11 episodes of Chicago Fire, Chicago Hope and Chicago P.D. may feel familiar to fans of the NBC One Chicago franchise. That is because the trio of shows is taking a week off from airing new episodes, and to fill the gap the network is airing episodes from earlier on in each show's current season.
Fans will not have that long to wait before they get new episodes of the NBC police, medical and fire department dramas.
Why are new episodes of One Chicago not airing tonight?
As is standard with network TV dramas, NBC is airing reruns rather than new episodes to make up for a gap in the schedules. All seasons of the One Chicago shows have been between 15 and 24 episodes long, but have aired as part of a TV schedule that runs from September until the end of May, a period of around 35 weeks.
As there are not episodes of shows to fill every week, shows sometimes have to take weeks off to better spread them out across the season. Most shows also tend to have a long break off over the festive period.
The One Chicago shows this season, for example, took a midseason break between November 20, 2019 and January 8, 2020, and then didn't air new episodes on January 29, February 19, and now March 11.

Whereas NBC sometimes fills these slots with other shows, this time they are airing the following reruns of the Chicago shows:
- Chicago Med: Season 5, Episode 9 ("I Can't Imagine the Future," originally aired November 20, 2019);
- Chicago Fire: Season 8, Episode 5 ("Buckle Up," originally aired October 23, 2019); and
- Chicago P.D.: Season 7, Episode 7 ("Informant," originally aired November 6, 2019).
When are new One Chicago episodes airing?
The release dates and synopses for the next episodes of Chicago Fire, Hope and P.D. are as follows (all times EDT):
- Chicago Med Season 5, Episode 17 ("The Ghosts of the Past"): Wednesday, March 18 at 8 p.m.
"Marking the series milestone 100th episode, Dr. Manning (Torrey DeVitto) and Dr. Charles (Oliver Platt) assist in a complicated case helping a 4-year old who they quickly learn is no stranger to the ED. Dr. Marcel (Dominic Rains) and Dr. Choi (Brian Tee) tend to a police officer with a mysterious gunshot wound to the abdomen. Relationships are put to the test as secrets are revealed." - Chicago Fire Season 8, Episode 17 ("Protect A Child"): Wednesday, March 18 at 9 p.m.
"Things get personal for Casey (Jesse Spencer) and Gallo (Alberto Rosende) in the aftermath of a suburban house fire involving a mother and her young son. Herrmann (David Eigenberg) campaigns for more respect. Kidd (Miranda Rae Mayo) has an idea for giving back to her community." - Chicago P.D. Season 7, Episode 17 ("Before the Fall"): Wednesday, March 18 at 10 p.m.
"Voight (Jason Beghe) enlists the help of a reformed gang member to get a key witness' testimony in a murder case. More lives are put on the line as a gang war brews."