Scootaloo, after years and years of intense practice, has saved many lives and become an expert flyer and scooterist. However, thing start going south when ghosts of the past begin to haunt her.
Her little sister, Rose Blossom, is completed devoted to her, a parallel of Scootaloo's own former relationship with Rainbow Dash. Although, Rose Blossom isn't quite so hardheaded and stubborn as Scootaloo was.
Rose Blossom gets to take the wheel of the narrative as both her and Scootaloo deal with their own struggles and difficulties.
Scootaloo's life starting from an attack as a baby, her adoption, and growing up through her struggles with her wings, culminating in a final race against her lifetime idol to show her worth.
Scootaloo's all grown up. Having completed her journey she takes some time just to be part of her adoptive family and watch her little sister grow.