Two siblings. One, a mare, who sole goal in life was to join the Wonderbolts. And a colt, older than the mare, whose destiny is granted to him by an accident. For so long, Lightning Dust thought her brother had died in that weather accident. Turns out he didn't, and after years have passed, they meet shortly after the events of 'Wonderbolts Academy' have taken place and Lightning Dust is leaving the academy...