The One Chicago franchise has long been known for its thrilling crossover events, bringing together the heroes of Chicago Fire, Chicago P.D., and Chicago Med for high-stakes, interconnected storylines. These episodes are a fan-favorite tradition, offering explosive action, emotional depth, and dynamic character interactions across all three shows.
The 2025 crossover event was no exception. With multiple crises unfolding across Chicago, Firehouse 51, Intelligence, and Gaffney Medical Center were pushed to their limits in a three-part television spectacle. But as with any crossover, some episodes outshined the others. Here, we rank the One Chicago 2025 crossover episodes from worst to best.
3. Chicago Med – “Code Red” (The Opening Episode)
Every One Chicago crossover kicks off with Chicago Med, setting the stage for the chaos to come. “Code Red” introduced a city-wide emergency when a biochemical threat led to a mass casualty situation in downtown Chicago. The ER was overwhelmed as doctors scrambled to treat victims with mysterious symptoms.
While the stakes were undeniably high, the episode suffered from pacing issues. The medical drama sometimes took a backseat to the larger crossover narrative, and while characters like Dr. Crockett Marcel and Dr. Hannah Asher had compelling moments, the tension felt more like a setup than a fully fleshed-out story.
That being said, Chicago Med successfully set the wheels in motion for the following episodes, delivering some nail-biting moments—especially when one of their own was exposed to the unknown toxin.
2. Chicago Fire – “Inferno in the Wind” (The Middle Chapter)
As Chicago Fire took over the second leg of the crossover, Firehouse 51 was thrust into the heart of the crisis. A suspicious fire broke out at a chemical storage facility, threatening to spread toxic fumes across the city. With firefighters racing against time to contain the flames, the tension reached new heights.
This episode stood out for its jaw-dropping action sequences, from daring rescues to a near-explosive disaster. Kelly Severide and Stella Kidd took center stage, demonstrating their unparalleled firefighting instincts, while Chief Boden faced impossible decisions.
What made “Inferno in the Wind” particularly gripping was its unexpected twist—just when the fire seemed under control, an explosion sent shockwaves through the area, injuring a key firefighter and setting up a dramatic transition into the final chapter.
1. Chicago P.D. – “The Last Stand” (The Epic Conclusion)
Ending the crossover with Chicago P.D. ensured that all the tension, mystery, and action culminated in a thrilling conclusion. “The Last Stand” followed the Intelligence Unit as they unraveled the truth behind the chemical attack and the arson at the storage facility.
Voight and his team worked tirelessly to track down the mastermind responsible, leading to an intense showdown between Intelligence and a radical group threatening to release more toxins across the city. The episode was packed with suspense, high-stakes interrogations, and a pulse-pounding chase through Chicago’s streets.
The emotional weight of the crossover truly hit here—particularly with Adam Ruzek and Hailey Upton, who found themselves in life-threatening situations. Burgess’ desperation as she searched for Ruzek added another layer of emotional depth, leaving fans on the edge of their seats.
Final Verdict
While Chicago Med did its job of setting up the crisis, Chicago Fire delivered heart-pounding action, and Chicago P.D. wrapped up the event with a masterclass in storytelling. The 2025 crossover was a rollercoaster of emotions and adrenaline, proving once again why One Chicago remains one of television’s most successful interconnected franchises.
Whether you’re a fan of medical emergencies, firehouse heroics, or detective drama, this crossover had something for everyone—securing its place as one of the most unforgettable One Chicago events to date.
