Caitlin Carver

Leslie and Ben argue over sales techniques at the farmers market; Ann looks for a way to let off steam about the annoying parts of pregnancy; April backs Andy in a new creative venture.

Leslie tries to tackle some of her goals, such as hosting an event with the Indianapolis Colts and adding fluoride to Pawnee's drinking water; Chris and Ron build cribs together.

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.

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.

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.

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