Tosin Morohunfola

NCIS investigates Marine Corporal Laney Alimonte (Camryn Grimes) after evidence suggests she murdered her neighbor while being treated for insomnia by a hypnotherapist.

An arsonist targets Lt. Severide. Meanwhile, Station 51 is under scrutiny by Gail McLeod, a financial consultant for the city who is deciding if any firehouses should be closed. Mouch receives a visit from his Japanese girlfriend, Lt. Casey "celebrates the one-year anniversary of Andy's death, and Shay suspects Severide's paternity.

A new set of lungs could save his life through an innovative surgical procedure but an unforeseen medical problem arises with Ray that might derail the doctor's grand plans. Sarah (Rachel DiPillo) contemplates which hospital to select for her residency match while Maggie (Marlyne Barrett) and April (Yaya DaCosta) make their push for her to remain at Chicago Med. Meanwhile, Dr. Choi (Brian Tee) works to determine the cause of an injured teenage star hockey player with an overbearing father while Dr. Halstead (Nick Gehlfuss) and Dr. Manning (Torrey DeVitto) continue to clash.

Dr. Halstead (Nick Gehlfuss) and Sharon Goodwin (S. Epatha Merkerson) deal with a husband intent on harvesting his recently deceased wife's eggs, but soon discover some vital information that surprises everyone. Dr. Charles (Oliver Platt) is brought in by Dr. Choi (Brian Tee) to aid a patient who is trying to remove his own arm from his body because he feels like it doesn't belong. Nurse Sexton (Yaya DaCosta) befriends the father of a child who is rushed into the hospital after swallowing magnets - a situation that Dr. Rhodes (Colin Donnell) and Dr. Manning (Torrey DeVitto) are concerned could present dangerous complications. Meanwhile, Sarah Reese (Rachel DiPillo) finally learns about where she will do her residency, but has last-minute second thoughts.

Dr. Rhodes (Colin Donnell) tends to the care of Dr. Downey (guest star Gregg Henry) while Goodwin (S. Epatha Merkerson) is forced to deal with personal issues. April (Yaya DaCosta) bears the brunt of a punch while attending to a disorderly patient, but the incident could actually prove to be a blessing in disguise. Dr. Halstead (Nick Gehlfuss) discovers Goodwin has a trick up her sleeve and Dr. Manning (Torrey DeVitto) finds her past catching up with her. Sarah's (Rachel DiPillo) graduation day finally arrives, but she remains conflicted about mapping out her career plans for the future. Meanwhile, at the urging of Dr. Charles (Oliver Platt), Dr. Choi (Brian Tee) turns to an unlikely source for help. Marlyne Barrett also stars.