After more than a decade of thrilling storylines, unforgettable characters, and jaw-dropping crossovers, NBC has confirmed what fans have

long hoped for: the One Chicago universe is expanding once again. This fall, a brand-new series will join the beloved franchise, marking an

exciting new chapter in the shared universe that already includes Chicago Fire, Chicago P.D., and Chicago Med.

 

 

NBC made the official announcement earlier this week, confirming that production is underway on the yet-to-be-titled fourth installment. The new series promises to bring fresh energy and a new perspective to the One Chicago lineup, while still staying true to the franchise’s gritty realism, emotional depth, and action-packed storytelling.

Launched in 2012 with Chicago Fire, the One Chicago franchise quickly became a network juggernaut. The addition of Chicago P.D. in 2014 and Chicago Med in 2015 solidified its status as a must-watch block of television. For years, fans have spent their Wednesday nights

 

 

immersed in the lives of Chicago’s firefighters, police officers, and medical professionals—stories grounded in heroism, heartbreak, and humanity. Now, with a new series officially greenlit for fall 2025, the universe created by television powerhouse Dick Wolf is growing once again—and it’s not just for the sake of expansion. According to insiders, this fourth show will fill a storytelling gap fans didn’t know they needed.

While the title and full cast have not yet been revealed, early reports suggest the show will center around the legal system in Chicago—possibly a Chicago Justice reboot or spiritual successor. It could focus on prosecutors, public defenders, and judges working within the Cook County legal system, highlighting the complexities of the courtroom and the difficult decisions made behind the scenes. Fans may recall that NBC previously aired Chicago Justice in 2017, which was canceled after just one season. However, with the franchise now more popular than ever and fans craving interconnected storylines, NBC may be revisiting the legal drama concept with a refined approach and stronger integration with the other One Chicago shows.

If this is indeed a reimagined legal series, it would complete a powerful quartet—fire, police, medicine, and law—mirroring the success of Dick Wolf’s Law & Order franchise, which spans police, legal, and FBI units. While NBC is keeping most of the details under wraps, here’s what has been confirmed or strongly hinted at:

The new show will premiere during NBC’s Fall 2025 lineup, airing on Wednesday nights alongside the other One Chicago series.

There will be crossover potential. Characters from Chicago P.D., Med, and Fire are expected to appear in the new series, especially in the pilot episode to help establish continuity and draw in fans.

At least one existing character from the One Chicago universe may transfer to the new show, either as a lead or recurring role.

Casting is currently underway, with a mix of familiar TV faces and fresh talent expected to join the ensemble.

Production will begin in Chicago this summer, with on-location shoots continuing the franchise’s commitment to realism and authenticity.

Unsurprisingly, the news has sent fans into a frenzy. Social media has been flooded with theories, wish lists, and pure excitement. Some are hoping for the return of fan-favorite characters like Peter Stone (played by Philip Winchester) or Anna Valdez (Monica Barbaro), while others are eager to meet a brand-new team of legal warriors.