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…

A fateful event sends shockwaves through a community on the South Side of Chicago and connects the lives of Brandon, Ronnie, Emmett and Kevin in wholly unexpected ways.

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….

Marcel and Charles treat Lieu’s gym buddy. Maggie and Halstead help a robbery-homicide suspect. Asher and Archer use Med’s new opiate abuse AI program.

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,…

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

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…

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.

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…

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

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

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

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

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.

Kidd recruits Carver, Capp and Tony to help prepare her new lieutenant’s quarters. Severide and Det. Pryma pair up to work a police investigation. Firehouse 51 fights a movie theater…

Kidd and Severide’s honeymoon is interrupted by a dangerous person from their past; Kidd’s former academy classmate joins Firehouse 51; Brett and Violet reflect on their relationships.

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…

In the aftermath of Halstead’s apartment fire, Marcel, Choi and Archer work together to try to save the survivors; Charles and Med’s new fellow, Cuevas, help a paranoid patient; Scott…

Dylan and Ethan treat a patient shot during a drug raid. Charles and Vanessa work together to properly diagnose a motivational speaker. Will and Hannah must turn to Crockett for…

As Faye’s trial continues, we look back on the “Satanic Panic” craze that swept America and the effects throughout Faye’s Underground.

In the aftermath of the trial, Faye finds herself and her network with enemies and critics and a newspaper article about the Underground leads to be Faye’s biggest conflict yet.

Faye reckons with a lawsuit filed by a multi-millionaire father, and the future of the Underground hangs in the balance.

Faye ushers April and her daughter Mandy into her underground operation to escape, but her work lands her in the crosshairs of law enforcement.

As Faye’s criminal trial begins, the origin story of the Underground is told and Faye’s complexities are revealed.

Emmett attempts to win Tiff back. Kiesha looks to start a new chapter for her and her son. Kevin takes his passion to a new level. Jake tries out for…

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….

Emmett’s past threatens his new marriage. Kiesha wrestles with a decision that will affect the life of her unborn child. A run in with law enforcement leaves Kevin, Jake and…