
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, colleagues she's crossed, the soulmate she divorced, the man she now loves or the tragedy that caused her to push everyone away. She can rely only on her estranged 17-year-old daughter, whom she remembers as a 9-year-old, and a handful of devoted friends, as she struggles to continue practicing medicine, despite having lost nearly a decade of knowledge and experience.
Amy must help a family process the news that their daughter's sudden illness could be fatal, while enduring a barrage of intrusive memory seizures; TJ and Sonya are forced to work together to treat a man whose injuries appear to be self-inflicted.