Ronnie faces his past crimes. Meanwhile, Brandon’s plan to finance his business goes awry. Kevin stars in the school play and attends a cast party with his friends. Emmett decides…

Charles and Nellie help an elderly patient and her developmentally disabled grandson. Will treats a high school swimmer with a heart condition. Crockett considers using the O.R. 2.0 for surgery….

A series of brutal home invasion robberies finds the team paired with Det. Borkowski, an old friend of Ruzek’s, to work the case. Things get complicated for Torres when it…

A shocking ambush at a funeral leads the team into a heated investigation to find the shooters. Much to Atwater’s surprise, he must rely on someone from his past to…

After a shocking discovery, the team begins closing in on Sean O’Neal with every shred of evidence they can find. Determined to keep his son out of prison, Chief O’Neal…

When actionable evidence finally surfaces against Sean O’Neal, Upton and the team work relentlessly to build a case in secret. They discover Sean is more elusive and dangerous than anticipated.

To distract Intelligence from the investigation into his son, Chief O’Neal forces the team to handle a “dead fish” case. However, when that dead fish turns into a complicated heater…

Upton’s dogged pursuit of a missing teenage girl leads the team into a dark web of human trafficking. Chief O’Neal becomes involved with the unit’s investigation when it becomes evident…

Atwater’s reactions during a tense arrest are called into question. The team must dig in to uncover key evidence that could aid in the ongoing investigation and clear Atwater’s name.

A shocking murder pulls rookie officer Dante Torres into his own neighborhood. As Voight and Atwater help him navigate the case and manage tricky personal dynamics with wary neighbors, Torres…

The team investigates a string of brutal pharmacy robberies, and Halstead connects with one of the victims about their Army careers. Upton suspects there is more to the story and…

When a convicted murderer hijacks a prison van, the team scrambles to find him and the abducted prison guard before it’s too late. Burgess questions Ruzek’s motives in a case,…

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…

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.

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.

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.

Still reeling from the death of informant Anna, Voight faces a new threat as he tries to keep the neighbourhood clean; new wrinkles develop in the Upton, Halstead and Voight…

Emmett tells Tiff to make a decision. Imani and Shaad get a clean slate. Jake comes clean to Jemma. Trig gives Douda an ultimatum. Tracy throws a celebratory block party….

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…

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

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

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.

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…

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…

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…

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

“Robot Chicken” introduces Velma to a whole new benefit of joining the Scooby gang; the Care Bears are friends to girls everywhere; the Nerd explores the pros and cons of…

After Percy confronts his old nemesis, Dr. Anna Ripley, a tenuous partnership is struck. Despite Percy’s protests that she can’t be trusted, Vox Machina brings Ripley along. She leads them…

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…

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…

In the aftermath of the Vas-COM scandal, Goodwin clashes with the hospital’s new compliance officer. Crockett and Blake try to save a patient who has a son with severe autism….

The team searches for a missing child in what turns out to be a very complicated case. Burgess and Ruzek are in for a shock when someone from Makayla’s past…

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…

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

Kang Sang Gu is taken in as a strong suspect of the Chimera Murders. Right before when Seo Hyun Tae could have been in grave danger, solid evidence is found…

Dave designs a Mustang for the ages to compete in the Optima Challenge, which involves running the car on track as well as in a traditional car show. The build…

Dave has a challenge on his hands restoring a 1964 Cadillac to its original condition while adding modern updates. Parts are scarce and the car’s current state leaves a lot…