Lorena Diaz

Dr Choi treats a teenage mother who abandoned her newborn baby in an alley. The nurses surprise Dr Manning with a baby shower.

Dr Rhodes begins his cardiothoracic surgery fellowship, but gets off on the wrong foot with his new boss, Dr Latham. Meanwhile, Dr Choi begins his life as chief resident, and Sarah is caught off-guard by Dr Charles.

Rhodes and Zanetti race to save a member of Firehouse 51, April's brother struggles during his first day at the hospital, and a woman saved from a burning building leads to a bigger mystery.

Dr Rhodes is tasked with delivering some devastating news. April suffers an accident and Dr Halstead presses her into seeking treatment.

A car crash at the Chicago Marathon leaves victims in critical condition, and April and her medical resident brother must perform an operation in the field. An 8-year-old girl experiences sudden hearing loss, and Dr Choi treats a malnourished woman.

Sharon faces a tough decision over a patient in need of a lifesaving bone marrow transplant. Meanwhile, Dr Manning deals with domestic difficulties.