Daniel Kyri

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.

Kidd must prove herself at the National Firefighter Leadership Conference, while the rest of Firehouse 51 is called to two eerily similar car wrecks. Mouch tries to keep the firehouse informed by starting a newsletter and Cruz deals with a heartbreak.

Casey and Severide disagree on a call, while Boden starts a diet and Brett's birth mother shares life-altering news. A familiar face has a proposition for Herrmann.

Members of Firehouse 51 are dismayed to learn their boundaries have been redrawn to overlap with an adjacent station, and problems quickly arise. Casey and Gallo hunt a missing piece of equipment. Brett and Foster find themselves at odds.

A pest control problem forces the 51 team to temporarily bunk with Firehouse 20. All under the same roof, Casey clashes with Capt Delaney, while Foster, Kidd and Brett fear Capt Leone has it out for them. Boden mulls a procedural overhaul.

When one of the team gets injured on a call, Severide becomes obsessed with helping out. Meanwhile, Foster grapples with a big decision. Kidd is concerned for one of her high school trainees.