When Chief of Internal Medicine Dr. Amy Larsen suffers a catastrophic brain injury, her life is turned upside down. Still determined to once again practice medicine, she charts a new path forward, ready to face whatever obstacles stand in her way.

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.

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.