The Cutie Mark Crusaders, sick and tired of their elders' constant coddling, decide to take matters upon their own hands to humble their sisters. And while remembering her sister at her most helpless form, Appletini, Apple Bloom decides the only way to stop their sisters' unnecessary babying is to shrink them and show them the error of their ways. Unfortunately, with the Crusaders being the Crusaders, their plan goes horribly wrong and their potion working just right.