One Chicago Crossover 2027 Set: When It Will Air & All the Details

Chicago Med, Chicago Fire, and Chicago P.D. are joining forces again for a three-hour event.

This next One Chicago crossover will come early on in 2027, airing on Wednesday, January 13, beginning at 8/7c. While for past events, Med and Fire have swapped places, this time, the series will air in the usual order. News of the event first came from Taylor Kinney during his Wednesday, November 11, appearance on The Tonight Show Starring Jimmy Fallon.

According to NBC, “Over the three episodes, an unexpected suspect (in the death of a patient at Chicago Med) will be the focus of a dramatic investigation that involves characters from Med, Fire, and P.D.” Additional details, including who will be appearing on which episodes, have yet to be revealed, but these events tend to seamlessly incorporate the characters from all three shows across the night and introduce fun pairings, like Kidd (Miranda Rae Mayo) and Ruzek (Patrick John Flueger) below in 2025.

This will be the third consecutive season with a three-show crossover event for One Chicago. (The one that aired in 2026 brought back P.D.‘s Jesse Lee Soffer and Tracy Spiridakos.) Scheduling and logistics (including post-COVID protocols) mean they’re not the easiest to produce. But the three shows have also continued to have smaller crossovers, with characters moving across shows for a few scenes here and there. And those who work on the series are fans of them as well.

“We love doing it. We say this every year, and it’s true,” Med showrunner Allen MacDonald told TV Insider at the beginning of the season.

With One Chicago dominating Wednesday nights, NBC is the #1 entertainment network on that day among total viewers for the season to date, with the premieres the network’s top three shows of the season. Med, Fire, and P.D. are all up on Peacock as well from last season — episodes are available to stream Thursdays — to pace as the best seasons yet on the streamer.

What are you hoping to see from this season’s crossover? Which characters do you want to see team up? Let us know in the comments section below.

One Chicago Crossover 2027, Wednesday, January 13, 8/7c, NBC