The long-awaited “One Chicago” crossover event is officially back — and it’s shaping up to be unforgettable for fans old and new alike.
After a brief hiatus while Chicago Fire, Chicago Med and Chicago P.D. paused for NBC’s Winter Olympics coverage, the franchise will roar back to life on Wednesday, March 4, 2026, with a three-hour special titled The Reckoning.
What’s making this event truly special isn’t just the sprawling mystery — it’s the emotional return of two fan-favorite characters.
Jesse Lee Soffer is reprising his role as Detective Jay Halstead, marking his first on-screen appearance since leaving Chicago P.D. after Season 10. And Tracy Spiridakos returns as Hailey Upton, who left the series at the end of Season 11.
Both actors have described coming back as a powerful and meaningful experience. Soffer said there’s “something about Jay and Chicago that’s always going to be in [his] DNA,” while Spiridakos called the reunion “like coming home” and a personal highlight of her year.
In the crossover storyline, the action kicks off when Firehouse 51 races to investigate a passenger jet that has gone silent mid-air — a crisis that quickly snowballs into a sprawling, high-stakes mystery weaving through each of the three shows.
Fans of the on-screen pairing “Upstead” — the beloved Halstead/Upton duo — are especially excited, as their emotional reunion adds depth and nostalgia to a crossover packed with action, drama, and surprises.
Whether you’re tuning in for the intense plot twists or the heartfelt character moments, this One Chicago event promises to be one of the most talked-about TV nights of the season when it airs on NBC next month.