Scootaloo has always been jealous of the relationship that Sweetie Belle and Apple Bloom have with their older sisters. She sees how they share a special bond that goes beyond friendship. Yearning for that same bond for herself, Scootaloo decides to ask her idol, Rainbow Dash, to join her in the largest celebration of sisterhood in Ponyville, the Sisterhooves Social. Rainbow Dash accepts, but she later receives an invitation from the Wonderbolts to train with them on the same weekend as the Sisterhooves Social! With help from Twilight Sparkle, Scootaloo and Rainbow Dash learn that the magic of sisterhood isn't always easy.