Jeff Garretson

Casey must decide whether to turn in a cop's son who paralyzed a teen in a drunken-driving accident; Severide learns he has a fractured vertebra; Mills is torn between his mother and the job.

After responding to a time-sensitive rescue, Casey and Severide don't see eye to eye on the best course of action; Herrmann struggles to entertain his daughter while at work; Brett is joined by a surprise guest during a spa getaway.

Lindsay goes undercover in hopes of finding a police officer who targets women leaving a local casino; Burgess needs Platt's approval to move forward with her plan; Antonio offers to take Roman's place in an upcoming boxing match.