Dr. Halstead and Dr. Manning are at odds over the care of a vegetative man; Dr. Rhodes goes behind Dr. Bekker's back to get his patient at the top of the transplant list; a woman in the waiting room falls asleep and won't wake up.

Upon hearing news of a pregnant teen, Dr. Manning and Dr. Choi venture to a homeless encampment to help deliver a baby under dire circumstances. Dr. Rhodes and Dr. Bekker argue about the best way to treat a young boy with a chronic disease. Dr. Halstead and April are put in an uncomfortable situation when they find out their patient is a pedophile. Goodwin and Maggie have to deal with a lawsuit against the hospital. Dr. Charles learns of important news pertaining to Dr. Reese's father.

After a neighbor is stabbed, Dr. Choi enlists the help of April to figure out who is the real cause of the incident. Dr. Bekker and Dr. Rhodes expertise is put to the test when Noah misdiagnoses a patient. Dr. Charles is put in an uncomfortable position when Dr. Reese's estranged father comes to him as a patient without her knowledge. Meanwhile, Dr. Manning rushes to save a baby with whooping cough.

After witnessing a drive-by shooting and hitting her head, Dr. Manning struggles with the aftermath of a head injury. Complicating matters, she and Dr. Halstead deal with a teenage patient and her overbearing older husband, who might not be looking out for his young wife's best interests. Dr. Rhodes finds himself in a unique situation when he learns alarming information about the woman he went on a date with. Maggie is surprised to discover some unexpected things about the man she has been seeing. Dr. Charles is frustrated when Dr. Reese disobeys his orders and puts herself at risk.

After discovering that a patient's family might have been abusive, Dr. Choi and April contemplate calling child services. Dr. Manning and Dr. Halstead struggle to see eye to eye in guiding a family who is dealing with their premature baby. Dr. Rhodes is persuaded into preforming a risky surgery on Dr. Bekker's mentor. Meanwhile, Dr. Reese joins Dr. Charles on a visit to the Cook County jail.

Dr. Choi struggles to help a woman cope with anorexia. After a two-week suspension, Dr. Reese is immediately put to the test upon her return by Dr. Charles. Dr. Rhodes takes a stand when one of his patients is forcibly transferred. Meanwhile, Dr. Halstead is on a mission to get Dr. Manning's son to like him.

Dr. Charles feels pressure when Dr. Choi and Dr. Manning criticize his medical decision regarding an ill newborn baby. Dr. Rhodes comes to terms with his relationship issues. Goodwin helps Bert understand Lyla's sickness.

Ethan attempts to diagnose a man with no symptoms while Sarah's paranoia goes to the extreme when she uses pepper spray on an aggressive patient. Will treats a young couple willing to sacrifice anything in order to have a baby. Meanwhile, Natalie must inform a woman that she was sterilized as a young girl without knowledge, and Goodwin and Maggie devise a way to persuade paramedics to bring in more patients.

When a young woman with HIV symptoms and no insurance refuses to take the test, Goodwin and Dr. Choi attempt to treat her without taking a toll on the hospital's resources. Natalie and Will try to diagnose a young girl with increasing paralysis. Noah deals with his first death as a resident and takes it upon himself to inform the family. Sarah continues to avoid work as her fear over the hospital's security increases.

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 are trapped by legal ethics when an unfaithful husband refuses to tell his wife about his inconclusive Zika test. Meanwhile, April and Noah discover working together isn't always easy while Goodwin continues to argue with the board over hospital costs after an avoidable patient death.