Following Twilight's coronation, Celestia and Luna organize a mutual solar eclipse to celebrate the end of their rule. Unfortunately, they forgot to let anypony know of this.
Princess Celestia and Princess Luna REALLY don't want you leaving the castle in this weather, but they're also gonna cuddle the heck out of you if you stay. A play off the classic holiday song.
The appearance of Equestrian Princesses on Earth, as well as the subsequent negotiations, are complicated greatly by the fact that neither can speak the others' language.
A new bully strikes fear into everypony at Ponyville Schoolhouse, and her name is Dinky Doo! She's the baddest of the bad, and it falls to Cheerilee to set the filly straight before it's too late, at least according to Dinky herself.