Watch Chicago Fire Season 4 full episodes online, free and paid options via our partners and affiliates.

Structure on Fire - Chicago Fire
Watch Chicago Fire Season 4 Episode 23
"Superhero"
Original Air Date:

On Chicago Fire Season 4 Episode 23, the team responds to a dangerous structure fire while Dawson continues her quest to foster Louie on the season finale.

Building Collapse - Chicago Fire
Watch Chicago Fire Season 4 Episode 22
"Where the Collapse Started"
Original Air Date:

On Chicago Fire Season 4 Episode 22, when a building collapses trapping a dozen people, the team responds and Dawson continues on her quest to foster Louie.

Dawson Makes a Save - Chicago Fire
Watch Chicago Fire Season 4 Episode 21
"Kind of a Crazy Idea"
Original Air Date:

On Chicago Fire Season 4 Episode 21, Dawson saves a young boy from an apartment fire while Cruz and Brett utilize a secret weapon with Otis and Dr. Halstead.

Holloway's Son - Chicago Fire
Watch Chicago Fire Season 4 Episode 20
"The Last One for Mom"
Original Air Date:

On Chicago Fire Season 4 Episode 20, Severide watches Holloway's young son while she testifies in court while Casey receives a suspicious package in the mail.

Gang Retribution - Chicago Fire
Watch Chicago Fire Season 4 Episode 19
"I Will Be Walking"
Original Air Date:

On Chicago Fire Season 4 Episode 19, Severide watches Det. Holloway's son at the firehouse while Casey becomes involved in a case of gang-retribution incident.

A Restaurant in Flames - Chicago Fire
Watch Chicago Fire Season 4 Episode 18
"On the Warpath"
Original Air Date:

On Chicago Fire Season 4 Episode 18, Firehouse 51 is called into action when a fire breaks out at a restaurant trapping several people inside.

Inside a Chimney - Chicago Fire
Watch Chicago Fire Season 4 Episode 17
"What Happened to Courtney"
Original Air Date:

On Chicago Fire Season 4 Episode 17, while investigating a carbon monoxide leak inside a home, Severide and Cruz find a child's remains inside a chimney.

Burning Car - Chicago Fire
Watch Chicago Fire Season 4 Episode 16
"Two Ts"
Original Air Date:

On Chicago Fire Season 4 Episode 16, Casey reconsiders running for alderman while the squad responds when a man is trapped inside of a burning car.

Dawson and Kidd - Chicago Fire Season 4 Episode 15
Watch Chicago Fire Season 4 Episode 15
"Bad for the Soul"
Original Air Date:

On Chicago Fire Season 4 Episode 15, the team responds to a suspicious call from a neighboring firehouse and they welcome a new firefighter. Casey moves forward in his run for alderman.

Battle of the Badges - Chicago Fire Season 4 Episode 14
Watch Chicago Fire Season 4 Episode 14
"All Hard Parts"
Original Air Date:

On Chicago Fire Season 4 Episode 14, Severide confronts Chili about her erratic behavior and Jimmy squares off against Antonio in the "Battle of the Badges" boxing match.

Casey and SWAT - Chicago Fire
Watch Chicago Fire Season 4 Episode 13
"The Sky Is Falling"
Original Air Date:

On Chicago Fire Season 4 Episode 13, the team responds to a mass shooting, Casey investigates the missing money from the fundraiser, and Jimmy agrees to represent the firehouse in a boxing match.

Dawson Faces Consequences - Chicago Fire
Watch Chicago Fire Season 4 Episode 12
"Not Everyone Makes It"
Original Air Date:

On Chicago Fire Season 4 Episode 12, Dawson and Brett face repercussions for telling Boden about Chili and Freddie's father begs Herrmann to forgive his son.

A Major Mistake - Chicago Fire
Watch Chicago Fire Season 4 Episode 11
"The Path of Destruction"
Original Air Date:

On Chicago Fire Season 4 Episode 11, Severide helps a Department of Homeland Security agent while Brett reports Chilli to Boden when she makes a major mistake.

Herrmann Recovers - Chicago Fire
Watch Chicago Fire Season 4 Episode 10
"The Beating Heart"
Original Air Date:

On Chicago Fire Season 4 Episode 10, squad members gather at Chicago Med after one of their own is attacked and Cruz works with Chicago P.D. to find Freddie.

Keeping Him Close - Chicago Fire
Watch Chicago Fire Season 4 Episode 9
"Short and Fat"
Original Air Date:

On Chicago Fire Season 4 Episode 9, Severide hunts down Serena, Jimmy and Chili draw attention they don't want, and Patterson fills in for Boden.

Borrelli and the Tortoise - Chicago Fire
Watch Chicago Fire Season 4 Episode 8
"When Tortoises Fly"
Original Air Date:

On Chicago Fire Season 4 Episode 8, Patterson questions whether Boden can remain chief while Boden believes Maddox is behind Serena's accusations.

A Set Up - Chicago Fire
Watch Chicago Fire Season 4 Episode 7
"Sharp Elbows"
Original Air Date:

Severide learns information about Patterson that could be a game changer while romance blossoms at a fire department gala on a brand new Chicago Fire.

A Favor - Chicago Fire
Watch Chicago Fire Season 4 Episode 6
"2112"
Original Air Date:

On Chicago Fire Season 4 Episode 5, the team responds to an accident that involves an 18-wheeler and Boden's new neighbor asks him for a favor.

The Wedding - Chicago Fire
Watch Chicago Fire Season 4 Episode 5
"Regarding This Wedding"
Original Air Date:

On Chicago Fire Season 4 Episode 5, Chief Riddle isn't happy when Boden offers to host a wedding at the firehouse after a fire destroys the original location.

The Arson Investigation - Chicago Fire
Watch Chicago Fire Season 4 Episode 4
"Your Day Is Coming"
Original Air Date:

On Chicago Fire Season 4 Episode 4, Severide digs deep into the arson investigation while squad members come together to support one of their own.

Transferred - Chicago Fire
Watch Chicago Fire Season 4 Episode 3
"I Walk Away"
Original Air Date:

On Chicago Fire Season 4 Episode 3, evidence that appearss to exonerate Boden may not be enough while the team responds to a stuck elevator in a hotel.

A New Commanding Officer - Chicago Fire
Watch Chicago Fire Season 4 Episode 2
"A Taste of Panama City"
Original Air Date:

On Chicago Fire Season 4 Episode 2, Severide must deal with having a new commanding officer while Casey searches for important evidence concerning Nesbitt.

Back to Work - Chicago Fire Season 4 Episode 1
Watch Chicago Fire Season 4 Episode 1
"Let It Burn"
Original Air Date:

On Chicago Fire Season 4 Episode 1, Casey is placed in a dangerous situation and the squad's hire turnover rate results in an unwelcome surprise for Severide.

Chicago Fire Season 4 Quotes

Otis: Candidate's late on his first day?
Mouch: Now that takes gumption.

Patterson: I'd like you to remain with the company. Your reputation as a firefighter is not in question.
Severide: No, just my ability to lead.