NBC has unveiled the first details about the upcoming “One Chicago” (Chicago Fire, Chicago Med, Chicago P.D.) crossover, the first one in five years.

Here’s the official logline for it:

When a gas explosion rocks a high-rise, Chicago’s first responders come out in force to rescue hundreds of civilians. It’s the calamity beneath the surface, however, that sends our heroes on a race to save 40 people trapped deep underground, including two of their own.

“Putting together what is essentially a three-hour action movie is an incredibly ambitious task requiring complete coordination across our writers, casts, crews and producers, along with help from the city of Chicago,” said Anastasia Puglisi, Wolf Entertainment Executive Vice President and co-executive producer of the #OneChicago series, said in a statement. “We’re thrilled to have the best talent in every department to meet this challenge, reinforce the #OneChicago brand, and provide our fans with a unique and compelling viewing experience.”

Chicago Med stars S. Epatha Merkerson, Oliver Platt, Steven Weber, Marlyne Barrett, Jessy Schram, Luke Mitchell, Sarah Ramos and Darren Barnet.

Chicago Fire stars Taylor Kinney, Dermot Mulroney, David Eigenberg, Miranda Rae Mayo, Joe Miñoso, Christian Stolte, Daniel Kyri, Hanako Greensmith, Jake Lockett and Jocelyn Hudon. Executive producers are Dick Wolf, Andrea Newman, Reza Tabrizi, Matt Whitney and Peter Jankowski.

Chicago P.D stars Jason Beghe, Patrick John Flueger, Marina Squerciati, LaRoyce Hawkins, Amy Morton, Benjamin, Levy Aguilar and Toya Turner.

Here’s when the new ‘One Chicago’ crossover premieres

The three-part “One Chicago” crossover airs Jan. 29, 2025 from 8 p.m. to 11 p.m. on NBC. The traditional “One Chicago”

The show order is switching up for the crossover, with Chicago Fire set at 8 p.m., Chicago Med at 9 p.m. and Chicago P.D. at 10 p.m.

The three series are produced by Universal Television, in association with Wolf Entertainment.

Chicago Fire

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