Peter DeFaria

Detective Lindsay calls in suspects in the disappearance of Katie's kidnapper; Jones struggles to fit in; Herrmann celebrates his 20th wedding anniversary.

Crockett and Charles treat Justin’s gym buddy. Maggie and Will help a robbery-homicide suspect. Hannah and Archer use Med’s new opiate abuse A.I. program.

Cruz feels the burden of his increased responsibilities. Kidd, Gallo and Carver get caught in the middle of a gang war on a call. Herrmann wrangles Trudy for help lifting Cindy's mood.

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

Dr. Charles learns a troubling fact about the man who shot him; Dr. Rhodes and Dr. Bekker come to an agreement during a complicated surgery; Will and Natalie have an ethical dilemma; April and Noah discover working together isn't always easy.

When Asher is killed while Antonio is on his security duty, Voight and Olinsky make sure he is covered; Halstead and Lindsay go undercover; Kot wants an answer from Lindsay.