Laya Hayes

Costumed patients create a challenge for the doctors; Derek and Ben work on a new surgical technique; Richard asks a resident to perform his next surgery, angering Bailey.

Severide comes back to work but isn't his usual self, Mills discovers more information about his father's family and Herrmann asks Molly investors to share ideas that could help turn the business around.

Jules and Grayson receive a wedding invitation from a couple they barely know and on a date that conflicts with Grayson's roller-hockey finals. Despite Grayson's important plans, Jules simply cannot say no.

Ryan goes undercover in a white supremacist organisation to help stop the distribution of a deadly strain of tuberculosis.