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.

A series of teen opioid overdoses sees Severide partner with Sean Roman, but he begins to suspect there's more to the story than his old friend is telling him. Casey tries to be there for Brett as she considers her birth mother's offer to meet.

Dr Charles and Dr Reese search for answers when a mother brings in her daughter claiming she is possessed. Dr Rhodes and Dr Bekker are tasked with finding a way to save a pair of conjoined twins.

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.

An unexpected visit throws Casey for a loop and Severide sets out to exonerate a wrongly convicted arsonist. Kidd pays the price for burning the candle at both ends, while Cruz goes on a mission to fix one of Otis's old toys.

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