Elfina Luk

Dr. Melendez, Dr. Brown and Dr. Park have given a young married couple two choices about their future: save the wife's life or their future ability to start a family. Meanwhile, when Dr. Lim has to take care of some personal business, she leaves oversight of the emergency room to Dr. Murphy and Dr. Reznick; and Dr. Glassman's post-op recovery leaves him struggling to get the rest he needs for recovery and also confronting his relationship with his daughter.

Shaun recalls his own past to help an intellectually disabled teenager face separation from his mother, while Claire is put between an injured teenage rock climber and her worried parents. Meanwhile, Glassman's post-op hallucinations force him to confront a personal tragedy.

Dr. Shaun Murphy and Dr. Morgan Reznick must contend with two brothers who are bargaining over life and death. Meanwhile, Dr. Claire Brown's friend who is dying of cancer asks her for something she doesn't think she can give her; and Dr. Aaron Glassman is dealing with the effects of his treatment.

In the winter finale, Dr. Shaun Murphy and Dr. Alex Park treat two patients who collapse at the local airport and whose symptoms point to an infection that may become airborne. The staff races to contain the infection before it spreads to the rest of the people in the ER, resulting in a hospital quarantine during the holidays.

Lea and Shaun's new relationship will become tested. Park gets ready to move back to Phoenix. Morgan puts herself and several members of the staff in danger. Claire continues to work through her grief from the death of Melendez.