Chief Boden becomes increasingly skeptical of Assistant Deputy Commissioner Gorsch’s motives, while Severide gets wrapped up in a difficult situation following the rescue of a child from a car wreck….

Firehouse 51 is on high alert when a series of explosions rock the city. Herrmann adjusts to his new duties and Kidd gets a visit from an old friend.

Working alongside a journalist, Casey does some digging into the cause of a trailer park fire. Boden hits his breaking point while Mouch, Herrmann and Cruz work to figure out…

Halloween is in full effect for Foster and Brett, who are summoned to a home where a prank has quickly turned serious. Gorsch continues his reign of terror on Firehouse…

Severide faces some major adversity and Kidd is on a mission to help in any way she can. Following a car accident rescue involving a teenage girl and her young…

Firehouse 51 is called in to battle a dangerous structure fire that places everyone in peril. Severide makes a big personal realization. Casey lends another helping hand to Naomi, the…

Stakes are high when a massive car pile-up on the freeway impacts someone dear to the firehouse family. Brett and Foster encounter a harrowing call while Kidd and Severide find…

A dangerous situation leaves Casey and Naomi in peril. Foster and Brett are in charge of planning a field trip visit to the station while Severide and Kidd go through…

After responding to a car accident, Casey and Dawson become skeptical when a domineering husband continues to answer for his injured wife. Cruz becomes frustrated with Herrmann and Mouch when…

In response to a call involving a residential fire, Otis and Kidd’s lives are suddenly put in jeopardy when gunfire goes off inside the house. Dawson comforts Brett during an…

The crew struggles to come to terms with an injury to one of their own; a temporary replacement must be dealt with; Boden ponders some interesting news; Kidd has a…

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…

When the FBI takes over Firehouse 51 for an undercover mission, Casey and Severide volunteer to assist with the investigation. Kidd attempts to help Severide come to terms with recent…

After responding to a residential fire at a property belonging to a Mexican drug cartel, Casey is skeptical of Cordova after a hefty amount of money was found missing from…

After saving a girl from a car accident, Chief Boden and Lt. Severide are taken aback when they receive a surprise package. Brett struggles to keep quiet about Cruz reacquainting…

Lt. Severide is shocked when Rene Royce resurfaces; Casey comes up with a plan to help Chief Boden in his latest pursuit; Kidd regrets a decision she made regarding Severide;…

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.

Boden’s chances for a promotion are met with potential complications. Dawson and Casey don’t see eye to eye on an important decision, while Kidd finds herself struggling to find time…

Lt. Casey gets off on the wrong foot with Sam Mullins, a temporary Chief who is filling in for Boden at House 51 for the morning. When Casey later makes…

While running a secret errand, Dawson finds herself trapped in a collapsed parking structure. With all paths of exit blocked, she is forced to improvise and works double-duty to keep…

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…

After heroically saving a mother and newborn baby from a rooftop fire, Kidd receives surprising news when she discovers she is being transferred out of the firehouse. Severide and Casey…

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…

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…

After learning unsettling news, Dawson enlists Severide to help her out. Elsewhere, Casey and Dawson struggle with communication issues while Brett and Kidd compete to win the heart of Zach,…

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

After responding to a time-sensitive rescue, Casey and Severide don’t see eye to eye on the best course of action. Herrmann struggles to entertain his daughter on “bring your child…

After photos of Casey and Severide jumping off the roof during a heroic rescue make the front page of the newspaper, Boden unwillingly agrees for the photographer to chronicle a…

While working to track down a bombing suspect, Voight and Antonio meet with Chief Boden, who unwillingly agrees to let Dawson and Brett go undercover. As the investigation continues, Boden,…

With most of the squad still trapped inside the burning warehouse fire, Chief Boden makes a risky last-minute decision in an effort to save his men. Dawson continues to deal…

After learning the school fire wasn’t an accident, Chief Boden turns up the pressure on Severide and Casey to investigate the cause of the fire that trapped his wife. Fueled…

Casey discovers a new crack house on the block that is harboring a female junkie. Dawson and Brett get assigned a new trainee for the shift. Meanwhile, Severide gets an…

When the squad’s rig breaks down in the field, Casey reunites with his old friend and colleague Jason Kannell from Squad 6. Dawson and Brett serve their time in retraining….

Casey goes to drastic measures to help his friend Kannell. Lt. Severide helps an old widow come to terms with letting go, but realizes he may be the one needing…

Cruz finds himself in a bad spot when an off-duty incident begins to unravel, prompting Mouch to step in and offer help in hopes of avoiding serious consequences from the…

A dangerous warehouse fire puts truck and squad at risk. Tensions are high for Dawson and Casey when Dawson’s father overstays his welcome at their home. Meanwhile, Casey continues to…

While responding to a call in the field, Dawson accidentally hits a pedestrian who stepped in front of the ambulance, and is left to deal with the repercussions. Lt. Casey…

It’s a family reunion when Dawson and Antonio’s mother and father come to Chicago for their big anniversary party, but things quickly turn south. When a deep secret comes to…

Lt. Casey and Dawson apply for permanent adoption of Louie, but quickly discover a hurdle. Firefighter-turned-medical student Jeff Clarke approaches Lt. Severide with an interesting proposition. With hopes of reinvigorating…

Dawson and Casey deal with legal matters in hopes of remaining Louie’s legal guardians. Severide continues in his efforts for a bone marrow procedure to help Anna, but when things…