When they go on a call, Matt tries to save a boy. But later the boy dies. Gabby and Antonio's parents are celebrating their wedding anniversary and Sylvie is dreading goi ...

While Gabby and Sylvie go on a call, Gabby who is driving hits a man. Later the man's son files a suit. Casey and Severide continue to butt heads over the fire at Darrin ...

Casey and Severide disagree on a potential arson case when the squad fails to save a woman from her burning house. ...

As per his duties as Alderman Casey visits a warehouse and while there, there's an accident wherein chemicals get spilled all over the place and a toxic gas covers the pl ...

Casey gets help from Susan Weller for an urgent personal matter; Severide is given an opportunity to travel with Travis Brenner; Stella saves a street kid from a tunnel f ...

Members of 51 end up in a dangerous situation while responding to an auto accident and Stella must make a serious decision about her ex. ...

Severide and Stella are on the lookout for her unstable ex. ...

Borelli is still dealing with his brother's death and wondering if Boden is at fault. Dawson tries to find a new place so that she can be made Louie's new foster mom. Ste ...

Dawson is determined to be approved a s a foster parent so she can take in Louie, the boy she saved. And Casey is not exactly supportive. Borrelli's brother, also a firem ...

When the team responds to a fire at a house, Dawson finds a boy and he's hesitant to go with her but he eventually goes with her. And he refuses to let her go so she goes ...

Severide watches over Detective Holloway's son while she testifies in court as part of an undercover operation, but he's left to deal with the situation due to an unexpec ...

The squad finds a boy beaten and tied to the tracks. Casey learns that the boy was targeted because of his brother. He tries to help the boy but is unable to. Detecxtive ...

Sylvie is threatened when she witnesses a murder. ...

With election approaching Casey's opponent tries to fling a little mud on him by saying he intends to continue working for the fire department even if he wins, in other w ...

A citywide propaganda attack against Casey's run for alderman makes him reconsider his candidacy. ...

Casey begins his campaign and is approached by someone who represents people who want to support him. The team responds to a call at another firehouse wherein one of them ...

Lt. Severide (Taylor Kinney) confronts Chili about his suspicions regarding her erratic behavior, but she does not take too kindly to his intentions. Meanwhile, members o ...

Mysterious threats begin to emerge throughout Chicago and the situation gets worse when news of a mass shooting brings Firehouse 51 into a dangerous scene. ...

Herrmann goes to court to testify against Freddie but when the perpetrators father reaches out to beg forgiveness for his sons malicious attack, a tormented Herrmann is l ...

The city of Chicago braces for a tornado. ...

While a member of Firehouse 51 falls victim to a near-fatal stabbing, the other firefighters rescue a woman who attempted to commit suicide. ...

Clues to Serena's possible whereabouts are uncovered, while Captain Patterson has news for everyone. ...

Patterson confronts Boden about his ability to lead the firehouse. ...

Boden finds himself in the middle of a fiasco concerning a female neighbor he believes is setting him up. ...

Severide and Patterson's differences reach a boiling point, while a visitor from Cruz's past asks for a favor. ...

Boden offers to host a wedding at the firehouse after a fire ruins the ceremony, but Chief Riddle is against it and his political aspirations cause friction among the fir ...

A member of Firehouse 51 requires the support of the whole team to recover from a near disaster. ...

Boden's job is on the line as the crew of Firehouse 51 continues to search for evidence that could clear him of any wrongdoing. ...

Internal Affairs investigates Firehouse 51 following a complicated call to a fire. ...

Casey finds himself in dangerous territory at the center of an undercover operation to bring down a trafficking ring out of Nesbitt's strip club. ...

Casey puts his life on the line and digs deeper into the shady dealings of Jack Nesbitt. With members of truck and squad at odds over Rice actions in the field, Chief Bod ...

At Sgt. Voight's urging, a determined Lt. Casey agrees to go undercover in an effort to provide proof of Jack Nesbitt shady dealings. Meanwhile, Otis and Severide continu ...