Kirby Mazrachi suspects her attacker from years earlier may be responsible for a recent murder, but she’s challenged by her shifting reality.

Carver deals with the fallout of his arrest. Brett searches for closure with the baby she rescued. Capp weasels his way into the Firehouse 51 group chat.

Det. Pryma’s case comes to an explosive end with Kidd and Carver’s lives in danger. Brett installs an infant safe surrender box at 51. Violet is determined to take Emma…

Firehouse 51 prepares for their semi-annual firehouse inspection. Brett fights to save her paramedicine program. Commander Martin Pearce asks Severide for a favor.