Rosie Benton

Dr. Manning (Torrey DeVitto) and Dr. Charles (Oliver Platt) treat a teenage girl with a rapidly changing set of symptoms that has everyone perplexed. Dr. Choi (Brian Tee) and medical student Jeff Clark (guest star Jeff Hephner) encounter a 19 year-old tough guy who is brought into the hospital in severe distress. Once they establish the cause of the pain, the situation quickly turns dangerous and a resolved Dr. Reese (Rachel DiPillo) does her best to help. Elsewhere, Dr. Latham (guest star Ato Essandoh) makes a big admission to Dr. Rhodes (Colin Donnell) while Dr. Halstead (Nick Gehlfuss) must deal with a difficult case that is further complicated by Dr. Stohl (guest star Eddie Jemison), who has a camera crew following him around to shoot a promotional video spotlighting the hospital. S. Epatha Merkerson, Marlyne Barrett and Yaya DaCosta also star.

Florrick/Agos and Lockhart/Gardner fight to keep Lemond Bishop as a client when he is arrested on a drug-related charge, which possibly resulted from a leak inside Alicia's firm. Meanwhile, the investigation into voter fraud in the gubernatorial election continues to move forward when Marilyn is approached by an agent in the Office of Public Integrity. Jack Davenport and Eric Bogosian guest star.

Joan worries Sherlock's sobriety is at risk when she learns he has been lying to her about attending recovery meetings. Also, Sherlock and Joan discover a man's death caused by ingesting poisoned sausage is connected to a lab working on a breakthrough in the artificial meat industry.

Reese's cover job as an NYPD detective becomes complicated when the young brother and sister he's protecting become targets of a gang investigation.

Bull and Chunk aim to prove that their client, a woman on trial for murder, committed the crime due to a lack of behavioral control caused by a brain tumor. Also, Taylor's professional and personal worlds come crashing down when she's suspected by the FBI for cybercrimes, and her ex-husband blindsides her regarding their son.