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.
Applejack finds out there may be another branch of her family in Whinnieapolis on the other side of Equestria, so she sets off on the longest journey of her life to find out.
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??
Some old foes of Applejack get aid from a wealthy pony who trades in the commodities market to manipulate cider prices to drive Sweet Apple Acres out of business. Applejack must get help if she is to save the farm.