After an old friend introduces Pinkie Pie to a whole new sugar experience, she becomes seriously addicted to everything sweet. To overcome her problem, she joins a fitness group which successfully replaces her dessert obsession with an exercise obsession to her friends' dismay.

They desperately want the old Pinkie Pie back, however they are unaware that if she breaks her contract, she will be spirited away to the land of chaos and pandemonium for all eternity.