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Season Three of Chicago Fire premiered on September 23, 2014 with the episode Always. This season consists of 23 episodes. Season 3 concluded on May 12 2015 with Spartacus.

Summary[]

In the aftermath of an arson that left Shay dead, the team must pull themselves together, including Severide, who was affected the most by the tragedy. On another note, Mills learns of a relative from his fathers past while sparking the ire of a mafioso after failing to save his son. Casey, on the other hand, must be there for his sister as she was going through a divorce with his cheating brother-in-law.

Cast[]

Main cast[]

Crossover Cast[]

Recurring Cast[]

Episode List[]

No. Episode Summary Air date
3x01
047
Always
3x01
Boden forces members of Firehouse 51 to pull themselves back together in the aftermath of a harrowing fire explosion. While 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. September 23, 2014
3x02
048
Wow Me
3x02
Lieutenant Severide returns to Firehouse 51, but he is clearly not his usual self. Dawson counts down the weeks until she gets started as a candidate at the Austin Firehouse. Meanwhile, Mills learns more about his father's family and Herrmann asks the potential Molly investors to come up with new ideas to turn the business around. September 30, 2014
3x03
049
Just Drive the Truck
3x03
Tensions run high when trucks from two firehouses collide and fingers are pointed towards Cruz for his driving. October 7, 2014
3x04
050
Apologies Are Dangerous
3x04
Dawson tries to strike a balance with Casey during her first day as a candidate. Meanwhile, Mills ponders an uncertain future; Severide faces his demons; and a city inspector visits Molly's. October 14, 2014
3x05
051
The Nuclear Option
3x05
Lieutenant Casey deals with the fallout of his sister's impending divorce. October 21, 2014
3x06
052
Madmen and Fools
3x06
Casey faces his corrupt brother-in-law and Brett goes above and beyond to help a mother in need. Meanwhile, Mills get an education on unlicensed private investigation and Dawson begins training with Herrmann. October 28, 2014
3x07
053
Nobody Touches Anything
3x07
Severide returns from Vegas with a huge surprise that sends ripples through 51. During a house fire, Firehouse 51 rescues the owner from the cellar clutching a suspicious box, leading Lt. Severide to bring in Sergeant Voight and Detective Lindsey for further investigation. November 11, 2014
3x08
054
Chopper
3x08
Firehouse 51 scrambles to save lives during a helicopter disaster. November 18, 2014
3x09
055
Arrest in Transit
3x09
Dawson's off-book move during a call threatens her relationship with Casey. Severide learns about Brittany's past. Mouch has dating troubles. November 25, 2014
3x10
056
Santa Bites
3x10
A textbook rescue turns into anything but, and Boden prepares to start a new family. December 2, 2014
3x11
057
Let Him Die
3x11
Mills and Brett battle against their captors. January 6, 2015
3x12
058
Ambush Predator
3x12
Severide and Dawson launch their own investigation into Shay's death. January 13, 2015
3x13
059
Three Bells
3x13
New clues lead Severide to face an old foe in the hunt for Shay's arsonist. February 3, 2015
3x14
060
Call It Paradise
3x14
Dawson struggles to care for a newborn abandoned at the firehouse. February 10, 2015
3x15
061
Headlong Toward Disaster
3x15
A major shake-up occurs when a new chief and an old foe join 51. February 17, 2015
3x16
062
Red Rag the Bull
3x16
After a tactical error, Chief Pridgen squares off against Casey. March 3, 2015
3x17
063
Forgive You Anything
3x17
Severide vouches for a new recruit with a controversial reputation. March 10, 2015
3x18
064
Forgiving, Relentless, Unconditional
3x18
An emotional rescue sends Herrmann on a mission to find a baby's father. March 17, 2015
3x19
065
I Am the Apocalypse
3x19
An explosive event at Chicago Med leaves the whole city at risk. April 7, 2015
3x20
066
You Know Where to Find Me
3x20
An opportunity may jeopardize Mills' return to squad. April 21, 2015
3x21
067
We Called Her Jellybean
3x21
An apartment fire connected to a case of rape and attempted murder resembles an unsolved case in New York, so Sgt. Benson of Special Victims Unit comes to Chicago to help Intelligence with the investigation. April 28, 2015
3x22
068
Category 5
3x22
Suspicions about Rice force the firehouse to choose sides. May 5, 2015
3x23
069
Spartacus
3x23
Tensions at 51 cause a shake-up at the station. May 12, 2015
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