When three ponies go to the Almighty Author of Life to audition for the next villain roles, they find he has declared a new rule: All villains from now on must have sad backstories of being rejected and reformations.
Gabby and Gallus go on a quest to find something to eat. Unfortunately for them, citizens of Ponyville seem to have completely different ideas about food.
Twilight is unable to control her powers during the entrance exam to the School for Talented Unicorns, and in order to reduce the damage caused by her power surges, Celestia shrinks her down until she would later learn how to control her powers.
Princess Celestia decides to teach young Twilight a lesson by reading to her a bedtime story from a banned book. To this day she wonders whether it's had an adverse effect on her protege turned Amazon.
Twilight Sparkle asks Starlight Glimmer to be the guidance counselor for the School of Friendship. Starlight, understandably, needs time to process this. And maybe a few strong drinks.
After sending Twilight to Ponyville, Princess Celestia demands letters from her but when Twilight starts to complain, Celestia becomes unhappy and replies to her letters in her own way.
An ancient tribe of ponies, banished long before Celestia took the throne, have been biding their time, waiting to return. The time for waiting is over. The time for invasion has begun.