Plot Synopsis

CHICAGO FIRE is an action series that follows the men and women of Chicago Firehouse 51, where firefighters, rescue squads, and paramedics respond to the city's most dangerous fires and rescue operations. These courageous men and women forge headfirst into danger when everyone else is running the other way, but the enormous responsibilities of the job also take a personal toll. When a tragedy claims one of their own, there's plenty of guilt and blame to go around, and Lt. Matthew Casey and Lt. Kelly Severide each blames the other for their fallen team member. Even though Casey and Severide butt heads, they put their differences aside and put everything on the line for each other -- and the rest of the crew -- as soon as it's "go time." Chicago Firehouse 51 includes: Squad Lieutenant Kelly Severide, an adrenaline-junkie who's the leader of the elite firefighters; Matthew Casey, a natural leader who is in his element when on a rescue or putting out a fire but is grappling with a recent separation from his wife, Hallie; Battalion Chief Wallace Boden, the captain of the squad; Peter Mills, a young candidate firefighter fresh from the Academy; Christopher Hermann, who loses his home due to foreclosure and is forced to move in with his in-laws; Gabriella Dawson, a fast-thinking and fearless paramedic committed to her job; Leslie Shay, a fearless EMT and prankster who's always in on the joke and the life of the party; and more.

CHICAGO FIRE returned on Tuesday, September 24, 2013 at 10pm ET/PT on NBC with a Season 2 opener that featured Lt. Severide being targeted as an arsonist and Gail McLeod clashing with Battalion Chief Boden, as she keeps a sharp eye on budgets and performance at the city's firehouses -- and has 51 under her microscope as one that could face the prospect of being closed. Plus, Lt. Casey reflected on the one-year anniversary of Andy's death, and Shay has suspicions about Severide's paternity.

Season 3 of CHICAGO FIRE premiered on Tuesday, September 23, 2014 at 10pm ET/PT on NBC. In the season opener, "Always," Boden forces members of Firehouse 51 to pull themselves back together in the aftermath of the harrowing fire explosion in the Season 2 finale. When Severide goes missing for one week too many, Casey works to track down his whereabouts. Meanwhile, Newhouse brings some unexpected news regarding one of Mills' relatives while Herrmann and Otis make some new goals regarding Molly's Pub.

The fourth season of CHICAGO FIRE premiered on Tuesday, October 13, 2015 at 10pm ET/PT on NBC. In the season opener, "Let It Burn," Lt. Casey, who is at the center of an undercover operation to bring down a trafficking ring run out of Nesbitt's strip club, finds himself in very dangerous territory. Meanwhile, as a result of the high turnover rate on squad, Severide gets a rude awakening when Capt. Dallas Patterson is brought in, much to Boden's dismay. Dawson confirms her suspicions that her life is about to change forever and Jimmy Borrelli, the new candidate, makes an unusual first impression. Elsewhere, citizens of Chicago band together to take charge of their neighborhood in protest of a drug den in their area, resulting in ramifications that severely hinder members of Firehouse 51, who are called to the scene to battle a blazing fire.

Season 5 of CHICAGO FIRE premiered on Tuesday, October 11, 2016 at 10pm ET/PT on NBC. In the season opener, "The Hose or the Animal," Severide and Stella are on the lookout for a very unstable Grant, who left Chicago Med without notice. Now that Dawson is responsible for Louie, she questions her dangerous career path as a firefighter. Casey continues his work as Alderman but his relationship with his political consultant, Susan Weller, cools. Problems continue for Borrelli, who still blames Chief Boden for the death of his brother, and the situation reaches a boiling point. Meanwhile, Mouch and Brett start off on a new venture together.

The sixth season of CHICAGO FIRE premiered on Thursday, September 28, 2017 at 10pm ET/PT on NBC. In the season opener, "It Wasn't Enough," with most of the squad still trapped inside the burning warehouse fire, Chief Boden makes a risky last-minute decision in an effort to save his men. Dawson continues to deal with her father (guest star Daniel Zacapa), who has new plans for himself. Brett's childhood friend Hope (guest star Eloise Mumford) visits the Windy City and strikes the attention of someone within the firehouse, while Kidd goes head-to-head with her landlord. Meanwhile, a fire at a high school hits close to home for Boden.

Season 7 of CHICAGO FIRE premiered on Wednesday, September 26, 2018 at 9pm ET/PT on NBC. In the season opener, "A Closer Eye," Casey tries to deal with his unsettled personal life and the firehouse welcomes a new member. Boden clashes with new Assistant Deputy Commissioner Jerry Gorsch (guest star Steven Boyer). On Wednesday, January 9, 2019 at 9pm ET/PT, NBC debuted "Inside These Walls," the mid-season premiere of CHICAGO FIRE. A dangerous situation leaves Casey and Naomi in peril. Foster and Brett are in charge of planning a field trip visit to the station while Severide and Kidd go through tough times.

CHICAGO FIRE returned for its eighth season on Wednesday, September 24, 2019 at 9pm ET/PT on NBC. In the season opener, "Sacred Ground," the mattress factory fire spirals out of control. Truck and squad lay it on the line in hopes of getting the trapped victims out alive. On Wednesday, January 8, 2020 at 9pm ET/PT, NBC debuted "Hold Our Ground," the winter premiere of CHICAGO FIRE. Members of Firehouse 51 are dismayed to learn their boundaries have been redrawn to overlap with an adjacent station and problems quickly arise. Casey and Gallo hunt a missing piece of equipment. Brett and Foster find themselves at odds. Mouch tries the find the recipient of a mysterious letter he discovers.

Season 9 of CHICAGO FIRE premiered on Wednesday, November 11, 2020 at 9pm ET/PT on NBC. In the season opener, "Rattle Second City," Firehouse 51 welcomes a new member to the team, whose presence could provide some complications. Brett's leadership shines during a scary call. Boden sees great potential in Kidd and proposes an idea that could have lasting repercussions. After an eight-week break, CHICAGO FIRE returned with new episodes on Wednesday, January 13, 2021 at 9pm ET/PT on NBC. In the winter premiere, "Smash Therapy," a mishap on the aerial ladder in the midst of a fire rescue leaves Mouch shaken and questioning his abilities. Kidd looks for support from Severide while Casey and Brett discuss their future.

CHICAGO FIRE returned for its tenth season on Wednesday, September 22, 2021 at 9pm ET/PT on NBC. Led by Capt. Matthew Casey and Lt. Kelly Severide, the Truck and Rescue Squad companies work day in and day out beside each other. This tireless, never-give-up mindset brings them all closer together -- the men and women of Firehouse 51 are more than co-workers, they're family. The firehouse also includes Battalion Chief Wallace Boden, who keeps his house running smoothly and his firefighters prepared to overcome all adversity. Paramedic Sylvie Brett returns alongside seasoned veterans Christopher Herrmann and Randy "Mouch" McHolland as well as resourceful firefighters Stella Kidd and Joe Cruz. Completing the team are daredevil Blake Gallo, talented and dedicated Darren Ritter, and 51's newest addition, headstrong paramedic Violet Mikami. After a four-week break, CHICAGO FIRE returned with new episodes on Wednesday, January 5, 2022 at 9pm ET/PT on NBC. In the winter premiere, "Back with a Bang," Stella Kidd returns to Firehouse 51. The team must work together to put out a potassium fire in a tunnel. After that incident, Ritter begins to worry about a young cop who witnessed the fiery death of a truck driver.

Season 11 of CHICAGO FIRE premiered on Wednesday, September 21, 2022 at 9pm ET/PT on NBC. In the season opener, "Hold on Tight," Kidd and Severide's honeymoon is interrupted by a dangerous person from their past. Kidd's former academy classmate joins Firehouse 51. Brett and Violet reflect on their relationships. After a four-week break, CHICAGO FIRE returned with new episodes on Wednesday, January 4, 2023 at 9pm ET/PT on NBC. In the winter premiere, "Something for the Pain," Det. Pryma's case comes to an explosive end with Kidd and Carver's lives in danger. Brett installs an infant Safe Surrender Box at 51. Violet is determined to take Emma down.

CHICAGO FIRE returned for its 12th season on Wednesday, January 17, 2024 at 9pm ET/PT on NBC. In the season opener, "Barely Gone," Firehouse 51 is forced to share its space with Firehouse 17. Kidd and Herrmann fight over Ritter. An arson case tests Kidd and Severide's relationship. Firehouse 51 says goodbye to one of its own.

The 13th season of CHICAGO FIRE debuted on Wednesday, September 25, 2024 at 9pm ET/PT on NBC. The firehouse is under new leadership with the addition of Chief Dom Pascal, who has huge shoes to fill after years of guidance under the calming hands of Wallace Boden, who was elevated to Deputy Commissioner. Pascal, who has spent the last decade as Chief in Miami, has a completely different style which may rub some the wrong way. What is clear at the outset are his skills and ability to stay dead calm in the face of crises -- and his goal remains consistent in keeping the house running smoothly and his firefighters prepared to overcome all adversity that may come their way. Dedicated Paramedic in Charge Violet Mikami leads ambo and is paired with the adventurous Lizzy Novak. Always looking to have fun, it is undeniable that when it is go time, Novak's skills and abilities are never in question. Seasoned veterans Randy 'Mouch' McHolland and Joe Cruz bring years of expertise to the team and strive to go above and beyond the call of duty. Talented Darren Ritter compliments the team, while firefighter Sam Carver battles his own demons and complicated relationships within the house.
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On Wednesday, November 20, 2024 at 9pm ET/PT, NBC premieres "Quickstand," the fall finale of CHICAGO FIRE. Herrmann and Mouch prepare to take their officer exams. Cruz receives a chilling omen. Carver takes care of a dog after its owner is injured on a call.

CHICAGO FIRE returns with new episodes on Wednesday, January 8, 2024.