Episode list

An explosion at a hospital where Casey and Dawson are volunteering for a charity run sends Chicago into chaos.

A dangerous warehouse fire puts truck and squad at risk. Tensions rise for Dawson and Casey as Dawson's father overstays his welcome at their home. Mouch considers retirement.

Chicago's first responders unite in the wake of a catastrophic gas explosion and fire that threaten a city government building. Herrmann reluctantly shadows Pascal while Violet, Novak and Dr. Frost take charge of triage efforts on site.

A fire at a boarding school shakes up Lt. Severide; Lt. Casey tries to help Dawson; Mills looks into his father's past.

The mattress factory fire spirals out of control. Truck and squad lay it on the line in hopes of getting the trapped victims out alive.

Firehouse 51 responds to the scene of a blaze that puts many lives in danger, including someone related to a Chicago police officer.

A raging fire consumes a 25-story apartment building complex, trapping victims on the top floors.

Casey takes drastic measures to help Kannell.

Members of Firehouse 51 transport victims of a gas leak to nearby Chicago Med; an armed patient claiming to be carrying a deadly airborne disease forces Chicago Med into lockdown.

McLeod continues to pressure Chief Boden, threatening to close Station 51, since he failed to retire as planned. "Mouch" steps up to pressure the union leader to preserve the station.