Chicago Fire

Casey tries to deal with his unsettled personal life and the firehouse welcomes a new member.

Casey tries to deal with his unsettled personal life and the firehouse welcomes a new member.

Firehouse 51 is faced with a daunting challenge when an out of control blaze consumes a 15-story apartment complex, trapping victims on the top floors.

Firehouse 51 is faced with a daunting challenge when an out of control blaze consumes a 15-story apartment complex, trapping victims on the top floors.

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 why Molly's isn't performing up to expectations.

Working alongside a journalist, Casey does some digging into the cause of a trailer park fire.

Halloween is in full effect for Foster and Brett, who are summoned to a home where a prank has quickly turned serious.

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 51.

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 sister, a suspicious Brett has an unsettling feeling there is more to the story than what appears on the surface.

Severide faces some major adversity and Kidd is on a mission to help in any way she can.

Firehouse 51 is called in to battle a dangerous structure fire that places everyone in peril.

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 investigative reporter.

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 their relationship being tested.

Stakes are high when a massive car pile up on the freeway impacts someone dear to the firehouse family.

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 tough times.

A dangerous situation leaves Casey and Naomi in peril.

Severide's side project of fixing the boat for a wealthy acquaintance turns complicated and personal.

Severide's side project of fixing the boat for a wealthy acquaintance turns complicated and personal. Meanwhile, his relationship with Kidd is at a crossroads. Brett helps Casey search for a new apartment and Firehouse 51 decides to enter Tuesday in a dog competition.

When the firehouse is called to a motorcycle crash, Casey and Severide sense that the details don't add up and work to determine exactly what transpired.

When the firehouse is called to a motorcycle crash, Casey and Severide sense that the details don't add up and work to determine exactly what transpired. A rift develops between Mouch and Otis. Brett, Foster and Kidd work to secretly fix a dent in the ambulance bumper they believe they unknowingly caused.

Cruz leads the charge in getting the firehouse to gear up for the Polar Plunge. Herrmann has a hard time bouncing back after dealing with a tough call. Foster's personal relationships begin to interfere with her job.

Cruz leads the charge in getting the firehouse to gear up for the Polar Plunge. Herrmann has a hard time bouncing back after dealing with a tough call.

Brett, Foster and Kidd take a road trip to Indiana for a getaway and encounter a bus accident involving a boy's hockey team that will leave them scrambling and relying on their instincts to save those hurt in the accident. The rest of Firehouse 51 competes in the annual Chili Cook-Off.