Caitlin Carver

A family friend asks Herrmann for some advice on opening a bar; tensions run high between Emma and Violet; Kidd struggles to keep her team together.

Mouch and Ritter work together to solve a murder mystery. Severide and Cruz tackle a food truck fire. Gallo goes to see Hawkins about Violet.

Firehouse 51 must band together when one of its own is taken hostage.

Firehouse 51 tackles a fire caused by a dropped jet engine, and one of their own is accused of a theft related to the incident; Kidd and Boden disapprove of Kylie's potential new love interest.

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 down.

The big wedding day arrives and Firehouse 51 welcomes Casey back to celebrate the joyous occasion. Emma’s plans to replace Violet come to a shocking end.