Dr. Shaun Murphy, Dr. Morgan Reznick and Dr. Audrey Lim treat a woman with autism and a delicate brain condition while navigating the complicated relationship she has with her roommate, who is also on the spectrum. Meanwhile, Lea and Shaun are still figuring out their friendship and roommate status.

The city of San Jose is rocked by a massive earthquake that puts the staff of St. Bonaventure Hospital on high alert as they race to assess the damage and account for the safety of their colleagues and friends. Meanwhile, Dr. Neil Melendez and Dr. Aaron Glassman are attending a charity event when their lives are threatened by the earthquake.