One Chicago’s 2025 Crossover Hints At A Major Severide Death That Would Absolutely Destroy Kelly

By James Garcia 10/06/2025

Taylor Kinney's Kelly Severide may be looking at a major loss in the much-anticipated One Chicago crossover. After five years, NBC and Wolf Entertainment are once again staging a special tradition for their top drama series, when the Windy City-set franchise convenes for a new event. Despite barely having any overlap in the last several years, primarily due to the threat of the global pandemic, the 2025 One Chicago crossover will see people from Gaffney Medical, Firehouse 51, and Intelligence work together to respond to a major transportation collapse in the city.

Before the 2025 One Chicago crossover, all three shows in the franchise have been telling different stories separately from each other. From the looks of it, the special isn't tied to anything that is happening right now in Chicago Fire season 13, Chicago PD season 12, and Chicago Med season 10. This means that whatever goes down in the primetime event will be contained. Unlike previous One Chicago crossovers, this one will be character-driven, with certain players finding themselves in danger as well. Among everyone, Kelly Severide may be looking at a massive loss, however.

One Chicago's 2025 Crossover Trailer Shows Kelly Severide In Tears

Stella Kidd Isn't The One In Trouble

Severide looking distressed in the One Chicago 2025 crossover

Severide looking distressed in the One Chicago 2025 crossover

NBC has released the official trailer for the 2025 One Chicago crossover, and while it only reveals the overall premise of the narrative, there are several standout moments from it. Arguably one of the most intriguing scenes is Severide crying towards the end of the clip. It has been confirmed that Stella Kidd would be trapped in the troubled train with Intelligence's Adam Ruzek, but her husband's tears are unlikely because of her. Throughout Chicago Fire, the couple has gone through so many near-death experiences, and for the most part, they are able to keep their cool.

Severide crying means a true tragedy, and since Kidd is confirmed for the rest of Chicago Fire season 10's run, his anguish may be because of the death of someone else close to him — his brother, Jack Damon. After his firing, Benny Severide's secret son transferred firehouses and remains active. Given the severity of the tragedy, he may be part of the first-responder team from his unit when he encounters a deadly situation. Otherwise, Damon could simply be commuting when the accident happened. Whatever the case may be, the death of his brother would absolutely warrant tears from Severide.

Granted that they haven't known each other for so long, but it was clear from the first few episodes of Chicago Fire season 13 that they get along well. Damon looked up to his brother and Severide enjoyed having to mentor someone. Unfortunately, Benny's younger son quickly changed his demeanor, pitting his brother with his wife and blatantly disobeying orders. In the end, Chief Dom Pascal fired Damon, effectively ending his stint at Firehouse 51.

What Jack Damon's Death Would Mean For Kelly Severide's Arc Moving Forward

Severide's Desire To Have Kids Can Return

This shouldn't be a problem, especially since he and Kidd have been married for a while now. That said, the decision should be unanimous; it should also come from a genuine interest in starting a family. Severide's grief should not force Kidd to change her apprehension about getting pregnant now. This is particularly important, since she would also be getting over the traumatic experience of being trapped in the One Chicago 2025 crossover. It would also be a tricky arc to tackle moving forward, considering Kidd's tough childhood. This is something that a future Chicago Fire episode will tackle.

Why Chicago Fire Abruptly Writing Out Jack Damon Has Been Detrimental To Severide's Arc

The Severide Brothers Could Have Been A Great Pairing

Jack Damon and Kelly Severide in Chicago Fire.

Jack Damon and Kelly Severide in Chicago Fire.

When Jack Damon's true identity as Benny Severide's son was revealed in the Chicago Fire season 12 finale, NBC and Wolf Entertainment set up an interesting situation for Severide in the show. At that point, rumors about Taylor Kinney leaving One Chicago were still swirling following his unexpected leave of absence in the previous year, which lasted for several episodes. Damon's arrival seemed like an indication that Severide would be sticking around, since the new character opened up new storytelling opportunities for her.

After more than a decade on the air, Damon's introduction opened a couple of narrative doors for Chicago Fire. For starters, his existence gives Severide a brand new relationship to foster. Since Matt Casey's exit in Chicago Fire season 10 and Chief Wallace Boden's subsequent promotion, the character's relationships have become limited, only properly interacting with his wife. With Damon around, Severide had someone new to develop a dynamic with. Secondly, Benny's sons working in the same firehouse marked the first time in the series. Thirdly, Damon was also developing some kind of romance with fellow newbie, Lyla Novak.

How Jack Damon's Potential Death In The One Chicago Crossover Is In Line With Chicago Fire's Storytelling

It Has Been A While Since Firehouse 51 Lost Someone

Michael Bradway as Jack Damon in Chicago Fire season 13

Michael Bradway as Jack Damon in Chicago Fire season 13

As a first-responder show, the people at Firehouse 51 risk their lives for a living. While Damon is no longer under Chief Pascal's team, his job remains the same. Regardless of how he ends up dying in the upcoming One Chicago crossover, the tragedy would be in line with Chicago Fire's long line of unexpected and tragic deaths. For context, its last untimely loss was when Violet Mikami's then-boyfriend, Chief Evan Hawkins died while on a call. Right now, the procedural needs to increase its stakes with demise in a call.

Admittedly, killing anyone from the main cast may not be possible at this point. Chicago Fire has had many essential characters leaving in the last couple of years, and changing its current ensemble at this point is extremely risky. Taking down someone who has strong ties to a core part of Firehouse 51 is NBC and Wolf Entertainment's best option if they want to reinforce the dangers of being a firefighter. It could also heighten the drama in the upcoming One Chicago crossover, especially for Severide, who has Kidd in jeopardy as well.

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