Caitlin Carver

As Rayna settles into the tour, she learns that Deacon has joined Juliette's band; Juliette wants to make a change but her team disagrees.

Leslie's new bold attitude as a lame duck costs Ben his job at Sweetums, Ron helps Chris build a crib

A workplace dispute between Leslie and Ben interferes with their personal life, Andy gets a job playing at a child's birthday party

Nemesis. Severide struggles with the cost of helping Det. Pryma with the Martucci case. Gallo campaigns for Herrmann to represent 51 at the National Firefighter's Association's Winter Conference. A familiar face makes a shocking return.

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

Something For The Pain. 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.