(Takes place before "Friendship is Magic".)
Pinkie Pie has just met and befriend Mr. and Mrs. Cake, and is excited at the prospect of getting to live in the bakery that they own. However, she has to first get the okay from her parents to stay in Ponyville.
Igneous Rock and Cloudy Quartz agree to visit Ponyville to talk with Pinkie's potential new caretakers, which is great cause for concern for Pinkie given that the filly has a complicated relationship with her parents.
What will Igneous and Cloudy have to say on the subject of their daughter leaving the rock farm before her time? And what will Mr. and Mrs. Cake think of the unusual behaviors of the Pies?