Jeff Lima

The Firehouse 51 crew has a Thanksgiving to remember when drugs, a car accident, and a gang shooting get in the way of traditional holiday pastimes.

The crew of Firehouse 51 are full of festive cheer until Casey is accused of stealing a diamond necklace. Meanwhile, sparks fly between Shay and Severide.

Casey's conscience gets put through the wringer when he visits his mother in prison. Cruz shares a secret, and Pete fills in for Shay in the ambulance crew.

The shooting of a child in their neighbourhood forces Cruz and his brother to think about the gang, Isabella gets Mills to dress up for a gala, Casey feels sad he will be seeing Dawson less, and Shay gets in deeper with Devon.

Boden tries to keep the firehouse from closing, the romance between Dawson and Casey grows, Cruz worries for his brother's safety, and Severide and Katie make up for lost time.

Casey gets off on the wrong foot with Chief Boden's stand in, while Mouch flies in Cruz's brother as a birthday surprise.