Rainbow Dash finds 2 matching necklaces that she thinks will look perfect on Rarity and Applejack. But turns out, those necklaces make their wearers turn into foals.
The Mane 6 are in a mysterious shop. Inside, there is a nursery for Adult Foals. There is also nursery machine. The mane 6 were sent to this place for one reason, to become foals.