Rainbow Dash and Twilight decide to visit Filthy Rich and Spoiled to stop the bullying towards Scootaloo. Meanwhile, Scootaloo has to face her mother, how she feels about her new life and the scars her old one have left her with.
A thousand years ago, Princess Celestia banished her sister to the moon, that much we know. What wasn’t known, and what Celestia kept secret was that before her banishment, Luna had given birth to a foal; Twilight Andromeda Sparkle.