When a clash of cultures accidentally leads to Scootaloo getting in a fight with her shy new classmate, it's up her big sis Rainbow Dash (and a garishly-dressed Twilight) to help her realize the importance of getting along with griffons.
Rainbow Dash gains leadership of the Wonderbolts. She quickly discovers that whoever coined the term 'the joys of command' must have possessed a twisted sense of humor. Scootaloo arrives with a familiar, cocky attitude, not helping matters.