Spencer ramps up his efforts to build a post football career in Miami. Charles copes with the realities of finding a new job, while Ricky must find a new home.

Stone and the State’s Attorney team investigates the chain of events following the arrest and death of a young man, ultimately seeking charges against Police, Fire Department and Medical personnel,…

Dr. Manning’s actions with a recent patient lead to serious repercussions. April and Noah disagree over a patient who is injured after a beating. Dr. Charles is visited by a…

Dr. Halstead finds continued success in his trial. Dr. Charles’ daughter, Anna, receives life-changing news. Noah finds himself in a situation not even April can fix.

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.

Dylan and Will deal with a dishonest patient whose lupus is in remission. A wealthy donor makes inappropriate advances toward Stevie. Vanessa, Crockett and Charles try to convince a young…

A major security breach in the city’s computer networks forces Firehouse 51’s senior leaders to take matters into their own hands. Severide gears up for an arson investigation.

Gallo clashes with the new lieutenant temporarily filling in for Casey. Severide closes in on a dangerous and deadly arsonist.

A series of teen opioid overdoses sees Severide partner with Sean Roman, but begins to suspect there’s more to the story than his old friend is telling him. Casey tries…

Casey steps up to help a teenager being bullied by a gang; Severide bonds with a detective’s son after her life is threatened; and Kidd and Herrmann go head-to-head in…

A rare but deadly bacteria takes its toll on numerous victims around the city, leaving Chicago’s finest first responders to work together alongside the CDC to resolve the dangerous situation….

Patterson fills in for Boden, who’s trying to clear his name. Severide learns where Serena may be hiding. Herrmann and Otis give Freddie a job that keeps him close by….

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.

Tensions run high when trucks from two firehouses collide and fingers are pointed towards Cruz for his driving.

Lt. Casey and Dawson volunteer to help at a charity run at Chicago Medical when a massive explosion sends Chicago into chaos. With one of their own missing in the…

When a drunk driver knocks down a transformer, the entire neighborhood is left without power on a frigid Chicago night and members of Firehouse 51 step up to lend their…

An arsonist targets Lt. Severide. Meanwhile, Station 51 is under scrutiny by Gail McLeod, a financial consultant for the city who is deciding if any firehouses should be closed. Mouch…

In the wake of Heather’s incident, Lt. Casey is having a hard time handling his newfound responsibilities. Lt. Severide is on edge dreading the next attack from the firehouse’s arsonist….