Pinkie Pie's granny comes to visit her granddaughter in Ponyville, nice, right? Maybe it would have been, if one comment about a mare Granny Pie once knew, years before the main six birth, hadn't set the whole world rumbling.
When a psychiatrist comes to Ponyville next door to a pharmacy, averything changes in town. Everypony finds out the truth about themselves. But is it really the whole truth and nothing but the truth??
Rainbow Dash and Twilight wakes up one day, just to find out that every pony suddenly hates them. Now they must head out on jorney to find out why all of Ponyville suddenly hates them so much!