Now in her late forties, Sunset Shimmer has built herself a career as a doctor. She has devoted her life to helping others, be it by prescribing pain killers or simply bandaging a scraped knee. A part of her longs to return to Equestria, but she is mostly happy with her new life. However, one day three very familiar girls drop by her office, one of them injured. Old memories flood back as Sunset is shown an unexpected harsh reality related to her high school life.