Allan Dobrescu

The search for Amy's hacker intensifies when the hospital finally brings in the FBI; Hannah, devastated by the death of her patient, works with Amy to treat a sick older man whose daughter believes has been poisoned.

After a brain injury erases the last eight years of Dr. Amy Larsen's life, she must navigate an unfamiliar world where she has no recollection of patients she's treated or the tragedy that caused her to push everyone away.

Amy treats a chaplain who helps her reconcile with the past; Michael is under investigation for his actions during the hostage crisis; TJ returns to work and treats a prisoner; Hannah's brother shows up with a plan.

A popular weight loss medication reveals the cracks in a couple's relationship; two sisters face an unexpected diagnosis.

Amy's past comes back to haunt her when a desperate father sacrifices everything to secure his daughter's heart transplant.

Amy grapples with having memories while treating a mother-to-be with a mysterious condition; Dr. Joan Ridley, Amy's mentor, visits Westside.