Mayday

• Episode 1

Firehouse 51 deals with the aftermath of the capsized boat rescue. Gallo, Ritter and Violet discuss plans for a side gig.

Head Count

• Episode 2

A video of Casey from the roof rescue goes viral. Mouch sets up a Little Free Library at Firehouse 51. Herrmann breaks protocol.

Counting Your Breaths

• Episode 3

Griffin learns the truth about his father's death and reveals why he really came to visit Casey. Gallo, Ritter and Violet take steps to expand their microbrewery business.

The Right Thing

• Episode 4

Kidd spreads her wings as a lieutenant. Chief Hawkins rides with Ambulance 61 to learn more about Brett. Casey takes a trip out of town. A Ritter date night turns into an emergency situation.

Two Hundred

• Episode 5

In the show's milestone 200th episode, Casey makes a life-altering decision. Gallo, Ritter and Violet agree to an interview and photo shoot. Brett and Mouch launch the paramedicine programme. Cruz comes closer to fatherhood.

Dead Zone

• Episode 6

A major security breach in the city's computer networks forces Firehouse 51's senior leaders to take matters into their own hands. Severide gears up for an arson investigation.

Whom Shall I Fear?

• Episode 7

Gallo clashes with the new lieutenant temporarily filling in for Casey. Severide closes in on a dangerous and deadly arsonist.

What Happened At Whiskey Point?

• Episode 8

Severide and Herrmann clash over office space. Boden looks at Pelham's past as he considers making him permanent. Gallo's resentment of Pelham comes to a head. Brett and Ritter force Violet to confront her true feelings for Gallo.

Winterfest

• Episode 9

Gallo, Violet and Ritter debut their microbrewery business at Winterfest. Brett prepares to present her paramedicine programme to an oversight panel. Firehouse 51 gets in the holiday spirit.

Back With A Bang

• Episode 10

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.

Fog Of War

• Episode 11

On a call with Station 37, a firefighter is struck by a power line and decides to lash out after her injury. Brett is visited by Scott and Amelia. Violet gets a surprise envelope. The rest of 51 enters a contest.

Show Of Force

• Episode 12

Boden, Kidd and Severide work together to protect one of their own. At the Fire Academy, Herrmann meets an inspiring young man. Talk of the annual CFD Gala dominates the firehouse.

Fire Cop

• Episode 13

Severide and Seager team up to investigate a fire at the home of a troubled young woman. Pelham moves into 51's rumoured cursed office. Kylie assists Kidd with Girls on Fire.

An Officer With Grit

• Episode 14

Chief Hawkins goes above and beyond to help Brett and Violet with a problem. Kidd pursues an open lieutenant position. A blast from the past asks Mouch and Herrmann for a favour.

The Missing Piece

• Episode 15

Following an injury in the aftermath of an industrial fire, Severide and Seager work together to investigate an anonymous tip. Kidd searches for the right person to fill the open spot on Truck 81. A possible new recruit to 51 gets tested at a call.

Hot And Fast

• Episode 16

Cruz forms a bond with a young immigrant boy he meets while fighting an apartment fire. Squad makes plans to prank the newest member of their team. Hawkins and Violet struggle to keep their relationship a secret.

Keep You Safe

• Episode 17

Severide and Kidd work with CPD regarding a suspicious car wreck. Hawkins and Violet's relationship is in jeopardy. Chloe and Cruz adjust to a new family dynamic.

What's Inside You

• Episode 18

Firehouse 51 must band together when one of their own is taken hostage.

Finish What You Started

• Episode 19

Firehouse 51 tackles a fire caused by a dropped jet engine, and one of their own is accused of a theft related to the incident. Kidd and Boden disapprove of Kylie's potential new love interest.

Halfway To The Moon

• Episode 20

A family friend asks Herrmann for some advice on opening a bar. Tensions run high between Emma and Violet. Kidd struggles to keep her team together.

Last Chance

• Episode 21

Mouch and Ritter work together to solve a murder mystery. Severide and Cruz tackle a food truck fire. Gallo goes to see Hawkins about Violet.

The Magnificent City Of Chicago

• Episode 22

The big wedding day arrives and Firehouse 51 welcomes Casey back to celebrate the joyous occasion. Emma's plans to replace Violet come to a shocking end.

Hold on Tight

• Episode 1

Every Scar Tells A Story

• Episode 2
• 01:00:00

Javi spends a couple of shifts at Firehouse 51. Kidd and Carver work together to help Carver's former boss. As Hawkins and Violet's relationship blossoms, Gallo turns his attention elsewhere.

Completely Shattered

• Episode 3

Kidd recruits Carver, Capp and Tony to help prepare her new lieutenant's quarters. Severide and Det. Pryma reluctantly pair up to work a police investigation. Firehouse 51 comes together to fight a movie theatre fire.

The Center Of The Universe

• Episode 4
• PG 15
• 00:45:00

Kidd gets a glimpse into Carver's chaotic personal life. Mouch and Herrmann receive an unexpected gift.

Haunted House

• Episode 5
• PG 15
• 00:45:00

Firehouse 51 hosts a Halloween open house. Kidd and Severide help a young girl after she gets kicked out of her home.

All-Out Mystery

• Episode 6
• PG 15
• 00:45:00

Severide and Kidd investigate an explosion at a jewellery store. Cruz and Chloe take steps to make Javi a permanent part of their family. Gallo, Ritter and Mouch try to bond with Carver.

Angry Is Easier

• Episode 7
• PG 15
• 00:45:00

Herrmann is tasked with fulfilling a man's dying wish. Kidd reflects on her Girls on Fire programme after one of her students graduates from the Fire Academy. A heckler harasses Firehouse 51.

A Beautiful Life

• Episode 8
• PG 15
• 00:45:00

Det. Pryma asks for Severide's help on a case involving explosives. Gallo and Carver clash after Gallo improvises on a call. Violet encourages Brett to start dating again.

Nemesis

• Episode 9
• PG 15
• 00:45:00

Severide struggles with the cost of helping Det. Pryma with the Martucci case. Gallo campaigns for Herrmann to represent 51 at the National Firefighter's Association's Winter Conference. A familiar face makes a shocking return.

Something For The Pain

• Episode 10
• PG 15
• 00:45:00

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.

A Guy I Used To Know

• Episode 11
• PG 15
• 00:45:00

Firehouse 51 prepares for their semi-annual firehouse inspection. Brett fights to save her paramedicine programme. Commander Martin Pearce asks Severide for a favour.

How Does It End

• Episode 12
• PG 15
• 00:45:00

Truck and Squad clash after a tense call rescuing a doomsday prepper. Herrmann struggles with Cindy's diagnosis. Violet gives Brett and Gallo dating advice.

The Man Of The Moment

• Episode 13
• 00:45:00

The Man Of The Moment

• Episode 13
• 00:45:00

Episode 14

• Episode 14
• 00:45:00

Episode 15

• Episode 15
• 00:45:00

Episode 16

• Episode 16
• 00:45:00

Episode 17

• Episode 17
• 00:45:00

Episode 18

• Episode 18
• 00:45:00

Episode 19

• Episode 19
• 00:45:00

Episode 20

• Episode 20
• 00:45:00

Episode 21

• Episode 21
• 00:45:00

Episode 22

• Episode 22
• 00:45:00