Madrid St. Angelo

After a neighbor is stabbed, Dr. Choi (Brian Tee) enlists the help of April (Yaya DaCosta) to figure out who is the real cause of the incident. Dr. Bekker (Norma Kuhling) and Dr. Rhodes (Colin Donnell) expertise is put to the test when Noah (guest star Roland Buck III) misdiagnoses a patient. Dr. Charles (Oliver Platt) is put in an uncomfortable position when Dr. Reese's (Rachel DiPillo) estranged father (guest star Michel Gill) comes to him as a patient without her knowledge. Meanwhile, Dr. Manning (Torrey DeVitto) rushes to save a baby with whooping cough.

Chief Boden (Eamonn Walker) finds himself in the middle of a fiasco concerning a female neighbor (guest star Ilfenesh Hadera), who he believes is setting him up. Severide (Taylor Kinney), who is still on probation from his altercation with Captain Patterson (guest star Brian While), receives a surprise visit from his father (guest star Treat Williams) and discovers some interesting information on Patterson that could be a game changer. Meanwhile, romance blossoms at the Chicago Fire Department gala.

Severide and Seager team up to investigate a fire at the home of a troubled young woman. Pelham moves into 51’s rumored cursed office. Kylie assists Kidd with Girls on Fire.