After one of Twilight's science experiments goes horribly wrong and accidentally sends Princess Celestia and Princess Luna to Plant Earth, Anon is given the task by the US Government to act as their care taker until they can manage to figure out a way to send them home.
Unfortunately for Anon, he is a very busy man, who can not do everything and be everywhere at the same time.
So what do two pony princesses from another planet do when they find out that they are out of Tea and their care taker is too busy to help them?
Well of course, they take it upon themselves to go grocery shopping by themselves.
In the hijinks that follows, many questions will remain:
How will both Princesses react to all the commodities offered to them by a supermarket conglomerate?
How will Carl the Walmart Manager, keep his store clean and peaceful when two aliens from a different planet keep trashing the place and terrorizing his customers?
Will Anon ever financially recover after the Royal Sisters use his credit card to buy everything they want and pay for the collateral damages that they cause?
And most importantly of all, how many Moon Pies will Princess Luna have to buy before she is finally satisfied?