|Season 2, Episode 2|
|Air date||September 29, 2016|
|Written by||Eli Talbert & Safura Fadavi|
|Directed by||David Rodriguez|
Dr. Choi mentors a Navy corpsman, while two cases involving sick babies may have a connection.
- Colin Donnell as Connor Rhodes
- Nick Gehlfuss as Will Halstead
- Torrey DeVitto as Natalie Manning
- Oliver Platt as Daniel Charles
- Yaya DaCosta as April Sexton
- Brian Tee as Ethan Choi
- Rachel DiPillo as Sarah Reese
- S. Epatha Merkerson as Sharon Goodwin
- Marlyne Barrett as Maggie Lockwood
Dr. Manning and Dr. Rhodes separately treat complicated cases involving sick babies, only to uncover that the two cases could actually be intertwined.
Elsewhere, Dr. Halstead and Dr. Charles treat a homeless man with an upbeat disposition who sheds some valuable insight that prompts one of the doctors to learn a thing or two along the way.
Dr. Choi has a Navy corpsman follow him for the day as they deal with the toll of gang violence in the city, while Dr. Reese tries to understand the delicate balance required in her new position.