Episode 1 | It Wasn't Enough

With most of the squad still trapped in the warehouse fire, Chief Boden makes a risky last-minute decision to save them.

Episode 2 | Ignite on Contact

When Boden learns that the school fire in which his wife was trapped was not an accident, he pressures Severide and Casey to find the cause.

Episode 3 | An Even Bigger Surprise

Lt. Casey butts heads with the new chief who fills in for Boden at House 51; Mullins has an unexpected surprise for Casey when he makes a risky move to stop a man from jumping off the building; Brett learns information about a fri...

Episode 4 | A Breaking Point

While running a secret errand, Dawson finds herself trapped in a collapsed parking structure; pressure mounts on Casey as he begins taking on additional duties; Kidd grows increasingly skeptical of Hope.

Episode 5 | Devil's Bargain

Casey and Severide find themselves at odds after Casey argues with him over the best way to save a teenager entangled in barbed wire. When Casey looks to Boden for help smoothing out the situation, he comes to the realization that...

Episode 6 | Down Is Better

Kidd is surprised to discover she is being transferred out of the firehouse; Severide and Casey are suspicious and investigate; Otis and Herrmann discuss taking over a rundown bar; Dawson's frustration with her father reaches a bo...

Episode 7 | A Man's Legacy

Brett attempts to make a lifesaving decision in the field to someone near and dear to the firehouse family. In an effort to impress Lily, Otis scrambles to get everything together for the grand opening of Molly's North. Meanwhile,...

Episode 8 | The Whole Point of Being Roommates

After saving a young girl, Dawson is forced to make a tough decision when she finds out the girl's father is addicted to painkillers. Herrmann loses his cool and gets into an altercation with a police officer after responding to a...

Episode 9 | Foul Is Fair

Dawson and Casey struggle to communicate; Brett and Kidd compete for the affections of a hazmat officer; Otis, Herrmann and Mouch search for the source of a stench that's making life difficult at Firehouse 51.

Episode 10 | Slamigan

Dawson and Casey do everything they can to locate Bria's whereabouts after discovering important new information. Lt. Severide reunites with Chief Grissom, an old family friend. Meanwhile, Cruz enlists the help of Brett and Mouch ...

Episode 11 | Law of the Jungle

Casey and Severide disagree on the best course of action following a time-sensitive rescue; Herrmann tries to entertain his daughter on "bring your kid to work day"; Dawson joins Brett on a spa getaway; Kidd's social life gets a b...

Episode 12 | The F Is For

The photographer whose pictures of Casey and Severide during a rescue make the front page of the newspaper chronicles a day-in-the-life story at the Firehouse.

Episode 13 | Hiding Not Seeking

The firefighters help the police track down a bombing suspect.

Episode 14 | Looking for a Lifeline

A domineering husband answers for his injured wife after Casey and Dawson respond to a car accident.

Episode 15 | The Chance to Forgive

Otis and Kidd respond to a call involving a residential fire only to head into danger when gunfire goes off in the house.

Episode 16 | The One That Matters Most

The members of Firehouse 51 come to terms with one of their own being injured and deal with the temporary replacement.

Episode 17 | Put White on Me

Boden has a lapse in judgment in the aftermath of rescuing a young boy. Kidd struggles to win the approval of Severide's mom after a surprise visit and Otis takes on new responsibilities at the firehouse.

Episode 18 | When They See Us Coming

Casey and Severide assist the FBI with an undercover mission; Kidd tries to help Severide come to terms with recent developments.

Episode 19 | Where I Want to Be

Casey grows skeptical of Cordova when a large amount of money turns up missing at the property of Mexican drug cartel.

Episode 20 | The Strongest Among Us

Boden and Severide receive a surprise package after saving a girl from a car accident.

Episode 21 | The Unrivaled Standard

Severide is surprised when Renee Royce returns to the firehouse; Casey helps Chief Boden in his latest pursuit; Kidd regrets a decision regarding Severide; Herrmann disagrees with Lt. Colannino over how to coach their sons' basket...

Episode 22 | One for the Ages

Boden takes a big step in the pursuit of a major career decision. Kidd becomes increasingly distrustful of Renee's motives with Severide. Herrmann has trouble bouncing back after a tragedy.

Episode 23 | The Grand Gesture

Boden's chances for a promotion are met with potential complications, leading him to take matters into his own hands. Dawson and Casey don't see eye to eye on an important decision, while Kidd finds herself struggling to find time...