The Cutie Mark Crusaders are three fillies who hold the highest noteriety for being the leading cause mayhem and grey hairs in Ponyville. Their mission? Find their Cutie Marks. Unfortunately, this mission usually ends these three "blank flanks" into more trouble than they started with.

When one mare tells them a story of a pool of water that allows for them to do a hundred things at once, they set out in search of this mystical pool that would grant them the ability to find their Cutie Marks a hundred times faster…

Celestia save us all.