Dust has lived on the edge of Ponyville all her life, keeping to herself and studying. When she makes a big discovery, she's eager to run to the castle and spread the good news! But why don't the ponies of Ponyville seem happy to see her?
When the Wonderbolt Academy doesn't turn out well, Lightning Dust enlists in the Equestrian Royal Guard to fill in the void. Deep in a wooded mountain range on a scouting mission, she contemplates what exactly drives her actions.