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Season 8 of Chicago Fire premiered on September 25, 2019 with the episode Sacred Ground. This season was planned to have 23 episodes, but due to the coronavirus outbreak only 20 were completed.

Cast[]

Main Cast[]

Recurring Cast[]

Guest Cast[]

Episode List[]

No. Episode Summary Air date
8x01
160
Sacred Ground
8x01
In the season 8 premiere, the mattress factory fire (later addressed as the Arnow fire) spirals out of control. Truck and squad lay it on the line in hopes of getting the trapped victims out alive. September 25, 2019
8x02
161
A Real Shot in the Arm
8x02
Casey struggles to get Chief Boden to sign off on an energetic new recruit (Blake Gallo). Against her better judgment, Foster extends an olive branch to her irritating new medic. Otis inspires Herrmann to seek new partners at Molly's. Brett realizes life in Fowlerton will take some getting used to. October 2, 2019
8x03
162
Badlands
8x03
Brett and Foster question the suspicious circumstances surrounding a brutal attack at a juvenile detention center, which leaves them searching for the truth. A convoluted new technology installed inside Firehouse 51 tests everybody's patience. Kidd gets chosen to represent the district at a leadership conference. October 9, 2019
8x04
163
Infection, Part I
8x04
A rare but deadly bacteria takes its toll on numerous victims around the city, leaving Chicago’s finest first responders to work together alongside the CDC to resolve the dangerous situation. Following a fire at a local university that ties into the outbreak, Severide has suspicions that something bigger is happening. October 16, 2019
8x05
164
Buckle Up
8x05
Kidd must prove herself at the National Firefighter Leadership Conference while the rest of Firehouse 51 is called to two eerily similar car wrecks. Mouch tries to keep everyone in the firehouse informed by starting a newsletter, but things quickly get out of hand. Cruz deals with a heartbreak. October 23, 2019
8x06
165
What Went Wrong
8x06
Cruz and Severide suspect foul play when a fire started by an elderly woman turns deadly. Kidd, Foster and Brett create a women’s-only lounge. Firehouse 51 celebrates some good news. October 30, 2019
8x07
166
Welcome to Crazytown
8x07
Severide must make a tough decision about the future of his career at Firehouse 51. Herrmann deals with the consequences of his temper after a run-in with a Chicago police officer. Cruz is excited to demonstrate the Slamigan at the Firefighting Expo. Commissioner Grissom returns. November 6, 2019
8x08
167
Seeing Is Believing
8x08
Severide begins his assignment at the Office of Fire Investigation and gets off on the wrong foot when, despite his orders, he reopens an old case. When the cause of an apartment fire hits close to home, Herrmann is on a mission to get to the bottom of it. Kidd finds herself burning the candle at both ends. November 13, 2019
8x09
168
Best Friend Magic
8x09
An unexpected visit throws Casey for a loop. Severide sets out to exonerate a wrongly convicted arsonist. Kidd pays the price for burning the candle at both ends. Cruz goes on a mission to fix one of Otis’s old toys. November 20, 2019
8x10
169
Hold Our Ground
8x10
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. January 8, 2020
8x11
170
Where We End Up
8x11
A pest control problem forces the 51 team to temporarily bunk with Firehouse 20. All under the same roof, Casey clashes with Capt. Delaney while Foster, Kidd and Brett fear Capt. Leone has it out for them. Boden mulls a procedural overhaul. January 15, 2020
8x12
171
Then Nick Porter Happened
8x12
A series of false alarms at a private school hinders the firehouse's ability to respond to legitimate emergency calls. Kidd asks for ideas to surprise Severide on his birthday. Cruz and Brett rent out their extra room, but the new tenant is more than they bargained for. January 22, 2020
8x13
172
A Chicago Welcome
8x13
The surprising arrival of a new fire truck brings both joy and chaos to members of Firehouse 51. Boden and Severide are asked to make peace with an old foe for the greater good. Brett receives family news while Foster plans a party with friends. February 5, 2020
8x14
173
Shut It Down
8x14new
A series of mysterious gas leaks has members of Firehouse 51 puzzled and spread thin. Brett's conflicted when her birth mother gets serious about tracking her down. Severide misunderstands his role as Cruz's best man. Mouch bites off more than he can chew. February 12, 2020
8x15
174
Off the Grid
8x15
A series of teen opioid overdoses sees Severide partner with Sean Roman, but begins to suspect there's more to the story than his old friend is telling him. Casey tries to be there for Brett as she considers her birth mother's offer to meet. February 26, 2020
8x16
175
The Tendency of a Drowning Victim
8x16
Boden is on edge after starting a new fat diet. Casey and Severide disagree on a call. Brett's birth mother shares life-altering news. A familiar face has a proposition for Herrmann. March 4, 2020
8x17
176
Protect a Child
8x17
Things get personal for Casey and Gallo in the aftermath of a suburban house fire involving a mother and her young son. Herrmann campaigns for more respect. Kidd has an idea for giving back to her community. March 18, 2020
8x18
177
I'll Cover You
8x18
Lt. Severide teams up with Seager and the OFI when a motel structure fire turns suspicious. Firehouse 51 members become amateur sleuths following a Reddit post involving one of their own. Brett continues to get invested in her birth mother, Julie. March 25, 2020
8x19
178
Light Things Up
8x19
Tension builds when a group of protesters attempts to lock down the firehouse. Brett is faced with a monumental decision. Cruz readies himself for a big day. Gallo and Ritter attempt to launch Firehouse 51 into the social media age. April 8, 2020
8x20
179
51's Original Bell
8x20
When one of 51's own gets injured on a call, Lt. Severide becomes obsessed with helping out. Foster contemplates a big decision. Kidd is concerned for one of her high school trainees. April 15, 2020

Notes and Trivia[]

Gallery[]

Chicago Fire - Season 8 - Poster (1)
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