Daniel Kyri

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.

Severide has a big decision to make about the future of his career. Meanwhile, Herrmann has a run-in with a patrol cop.

Firehouse 51 responds to a massive freeway accident that impacts someone close to them. Then, Foster runs into a face from her past.

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

Severide starts off on the wrong foot at his Office of Fire Investigation assignment when, despite orders, he reopens an old case. Herrmann is on a mission to discover what caused an apartment fire and Kidd finds herself burning the candle at both ends.

Cruz leads the charge in getting the firehouse to gear up for the Polar Plunge, and Herrmann has a hard time bouncing back after dealing with a tough call. Plus, Foster's personal relationships begin to interfere with her job.