The firefighters respond to a blaze at a local prison, but a power outage and a prison riot creates a recipe for disaster.
Casey teams up with members of the Chicago Police Department to uncover the mystery surrounding Hallie's murder.
Severide decides to attack his assault accusations head on, and tragedy befalls Firehouse 51 when the squad loses one of their own.
Old friends and enemies return to haunt Firehouse 51, for better and for worse.
Mills' ambition to join Squad sparks a firestorm of animosity in Firehouse 51.
Executive Producer and Director Joe Chappelle talks Chicago Fire, Chicago PD, and shooting a large-scale action scene in the middle of Chicago.
Herrmann and Cruz have some fun while filming the sewer rescue scene in "Let Her Go."
The firefighters respond to a fire at a local prison, but a power outage and a prison riot creates a recipe for disaster.
Otis helps Herrmann out of a tough situation.
Chicago Fire's Monica Raymund and Lauren German have a musical take on sublingual injections.
Chicago Fire cast and crew offer up lesser known fire truck facts.
Casey agrees to participate in a sting operation to catch Hallie's murderer, but when the plan goes haywire, Casey finds himself in the clutches of a ruthless killer.
Otis, Herrmann, Mouch and Cruz talk about Chicago cops vs. Chicago firefighters.
Are you Team Casey or Team Severide?