While at the hospital recovering, Amy can’t help but insert herself into her roommate’s case. Meanwhile, all the other doctors and nurses have to adjust to the once formidable Chief now being the patient.

Amy must confront who she has become after the tragedy that struck her family seven years ago. Sonya and TJ disagree on how to treat a sick Marine, and Amy and Jake make a life-changing discovery about an Alzheimer’s patient.

A mass casualty event requires all hands on deck at Westside Hospital. Amidst the chaos, Gina deals with a devastating revelation and Amy’s forced to confront her demons.