Season 4
(2015)
Cast
as Kelly Severide
as Matthew 'Matt' Casey
as Christopher Herrmann
as Joe Cruz
as Randy 'Mouch' McHolland
as Gabriela Dawson
as Sylvie Brett
as Wallace Boden
as Brian 'Otis' Zvonecek
as Jessica 'Chili' Chilton
as Jimmy Borelli
Episodes
Let It Burn 8.2
October 13, 2015
Casey is placed in a dangerous situation while working undercover to bring down a trafficking ring being run out of Nes…
A Taste of Panama City 7.5
October 20, 2015
Boden's job is on the line pending an internal investigation. Severide adjusts to Patterson, his new commanding officer…
I Walk Away 7.4
October 27, 2015
Evidence that seems to exonerate Boden may not be enough. Brett and Chili find themselves in a precarious situation. Th…
Your Day Is Coming 8.4
November 3, 2015
The squad members come together to support one of their own. Herrmann tries to figure out how to reopen Molly's after i…
Regarding This Wedding 7.4
November 10, 2015
Boden offers to host a wedding at the firehouse after a fire destroys the original location, but it doesn't sit well wi…
2112 7.2
November 17, 2015
Boden's new neighbor asks him for a favor that could have serious repercussions. Severide is upset when he's treated li…
Sharp Elbows 7.6
November 24, 2015
Boden suspects his neighbor is setting him up; Severide, who's still on probation, receives a surprise visit from his f…
When Tortoises Fly 7.5
December 1, 2015
Boden believes Maddox is behind Serena's accusations. Severide reaches out to Jamie, who's Maddox's lawyer, in an attem…
Short and Fat 8.1
December 8, 2015
Patterson fills in for Boden, who's trying to clear his name. Severide learns where Serena may be hiding. Herrmann and …
The Beating Heart (I) 7.9
January 5, 2016
Herrmann fights for his life after being stabbed; Cruz hits the streets to find Freddie. Mouch proposes to Trudy. The …
The Path of Destruction 7.1
January 19, 2016
A tornado threatens Chicago. Chili makes a major mistake, which causes Brett to report her to Boden. Otis asks Dawson t…
Not Everyone Makes It 7.4
January 26, 2016
Freddie's father begs Herrmann to forgive his son's assault. Casey discovers that a makeshift shelter housing people di…
The Sky Is Falling 8.8
February 2, 2016
The team responds to a mass shooting; Casey investigates the missing money from the fund-raiser. Jimmy agrees to repres…
All Hard Parts 7.2
February 9, 2016
Severide confronts Chili about her erratic behavior. Members of the firehouse rally around Casey, who they think would …
Bad for the Soul 7.6
February 16, 2016
The team responds to a suspicious call from a neighboring firehouse; and welcomes a new firefighter, though her additio…
Two Ts 7.3
February 23, 2016
Casey reconsiders his run for alderman after he's targeted by a propaganda campaign. The squad responds when a man is t…
What Happened to Courtney 7.8
March 29, 2016
Severide and Cruz find a child's remains inside a chimney while investigating a possible carbon monoxide leak inside a …
On the Warpath 7.2
April 5, 2016
Sylvie witnesses a murder and is threatened by the shooter not to go to the police. Firehouse 51 jumps into action when…
I Will Be Walking 6.8
April 19, 2016
Casey steps up to help a teenager being bullied by a gang; Severide bonds with a detective’s son after her life is thre…
The Last One for Mom 7.9
April 26, 2016
Firehouse 51 unites to help a young boy in tragic circumstances. A high-powered political consultant helps Casey naviga…
Kind of a Crazy Idea 7.2
May 3, 2016
Dawson saves a young boy from an apartment fire. Kidd's idea for Molly's doesn't go as hoped. Severide hits a wall whil…
Where the Collapse Started 7.6
May 10, 2016
The team responds to a building collapse that's trapped more than a dozen people. Dawson's quest to foster Louie is aid…
Superhero 7.8
May 17, 2016
Boden and Jimmy are at odds. Kidd deals with her unstable ex. Dawson continues her quest to foster Louie. Casey's new p…