The Intelligence Unit may be heading into its most emotional chapter yet — and longtime fans of Chicago P.D. are already bracing themselves.
In a surprise announcement that has sent shockwaves across the One Chicago fandom, former series favorites Jesse Lee Soffer and Tracy Spiridakos are officially set to reprise their iconic roles as Jay Halstead and Hailey Upton in the highly anticipated 2026 crossover event uniting:
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Chicago Fire
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Chicago Med
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Chicago P.D.
The special three-hour crossover is scheduled to air on March 4, 2026, marking the first time the beloved on-screen couple will reunite since their respective departures from the show.
A Reunion Fans Thought Might Never Happen
Soffer exited the series back in 2022 after ten seasons portraying Detective Jay Halstead, while Spiridakos made the difficult decision to leave in 2024 following her seven-year run as Hailey Upton.
Their characters’ relationship — often dubbed “Upstead” by fans — ended in heartbreak after an emotional split, leaving viewers wondering if the two would ever cross paths again.
Now, it seems fate — and a dangerous new case — may finally bring them face-to-face.
Early previews suggest the upcoming crossover will revolve around a high-stakes emergency involving a passenger jet that mysteriously goes silent mid-flight, triggering an investigation that quickly spirals into something far more deadly.
As the crisis unfolds, Halstead and Upton are expected to re-enter the storyline through a complex federal case that could have ripple effects across all three Chicago teams.
What This Means for the Future of the Intelligence Unit
NBC has confirmed that the crossover will serve as Episode 13 of Season 13 across all three One Chicago shows — a milestone moment that promises not only action, but long-awaited emotional closure for one of the franchise’s most beloved relationships.
With behind-the-scenes photos already teasing their return to action, anticipation is at an all-time high — especially among fans hoping the reunion might finally offer a new beginning for Halstead and Upton.
Will old feelings resurface?
Or will this case reopen wounds that never truly healed?
One thing is certain: Chicago’s finest are about to face a reunion years in the making.