Chief Boden takes action to try to help a boy who was seen at two fires previouly, one firefighter is on medical leave after an accident at a fire and Casey and Dawson are gradually seeing each other.moreless
Severide's injury gets worse, an abusive mother makes terrible decision and a train accident takes life of a young person.
Thanksgiving at the firehouse includes a 10-car pileup, a gang shooting, and a meth lab.
When Dawson faces suspension the girl she saved decides to help her. Detective Voight does everything he can to make Casey retract his statement. A dangerous action during an apartment fire may change Casey's situation.moreless
Severide seeks an old friend's help with his injury, a disciplinary action is taken against Dawson and Casey has to deal with the aftermath of opposing Detective Voight.
An elderly woman needs Severide's help, Detective Voight tries to persuade Casey not to testify against his son, Chief Boden is accused of leaving a homeless man to die in a warehouse fire and Shay comes face to face with a man from her past during a call.moreless
Casey has to decide if he should report that a cop's son is responsible for a drunk car accident that left a teen paralyzed. Meanwhile Severide is diagnosed with a fractured vertebra and Mills has trouble sharing his time between his mother and the job.
Lt. Kelly Severide tries to keep his shoulder injury a secret as he helps a construction worker from a collapsed building. Meanwhile two teenagers are stuck in a vehicle.
The members of Firehouse 51 struggle to cope when one of their own dies in a fire. Lt. Matthew Casey and
Lt. Kelly Severide blame each other for their friend's death. Meanwhile Casey goes through a separation with Hallie and
Battalion Chief Wallace Boden has to make a crucial decision.
Under the watch of a young couple, an infant dies of Shaken Baby Syndrome. Kathryn charges both of them with manslaughter. To defend them separatly, Jimmy and Alejo must represent each one of them which create tension at Brogan & Associates...moreless
Jimmy represents an accused from his old neighborhood, while Kathryn must relies on the testimony of a 12-year-old...
Ten years after being assaulted by a young man, a comatose woman dies. Father asks Kathryn to bring a new charge of murder for the man previously only convicted of agression.
Agressor old attorney Lloyd Perlman needs the help of Jimmy...
Ed Romeo continues to train Lights in his unorthodox but effective manner. Lights feels in the best shape of his life, but Romeo's constant distain for his Father, Brother and sister wears on him.moreless
Robert thinks his son should quit boxing so Lights turns to another trainer, Ed Romeo. Pat's daughter Ava wants to go to the prom, but her mother has concerns. The family takes exception to the introduction of an outsider into Pat's boxing career.moreless
The wife of a dentist is accused of his murder when he is found dead in his own chair.
Jimmy Brogan defends a woman accused of murdering her younger model boyfriend, the same woman he defended 3 years earlier for a very similar crime.
When a well-to-do couple are found in a pool of blood, the woman dead and the man barely alive, the 16 year old son is prime suspect. When the son confesses, Jimmy takes the case trying to prove that the son was bullied into a confession.moreless