Brett and Foster question the suspicious circumstances surrounding a brutal attack at a juvenile detention center, which leaves them searching for the truth. A convoluted new technology installed inside Firehouse…

The surprising arrival of a new fire truck brings both joy and chaos to members of Firehouse 51. Boden and Severide are asked to make peace with an old foe…

Herrmann tries to rescue a toddler from a structure fire. Mills discovers unexpected news.

The members of the firehouse spring into action when a helicopter explodes over a populated area.

While responding to a call of shots fired, Voight, Antonio, Halstead and the team come across a secret battered woman’s shelter and discover the owner has been wounded and a…

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…