Daniel Kyri

Vasquez fights to prove himself at 51. Violet and Novak pursue a troubling mystery. Herrmann is on a quest to keep Molly’s profitable.

Casey struggles to get Boden to sign off on a new recruit. Foster extends an olive branch to her irritating new medic. Otis inspires Herrmann to seek new partners at Molly's and Brett realises life in Fowlerton will take some getting used to.

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.

Severide and Kidd continue to investigate Benny's old arson case, unexpected news leads Brett to ponder a big decision and all hell breaks loose.

Foster faces blowback after pointing out a doctor's oversight, Brett helps Casey look for a new apartment, and Kidd prepares Tuesday the Dalmatian for the Fire Safety Dog Competition. Plus, a serious accusation is levelled against Severide.

Cruz and Severide suspect foul play when a fire started by an elderly woman turns deadly. Kidd, Foster and Brett create a women's-only lounge. Firehouse 51 celebrates some good news.