Ocellus is trapped in a palace infested with a brood of love-starved changelings and their queen who are intent on using her only way home as a means to invade her world.
Queen Chrysalis accidentally Reformed, and now needs a vacation to sort things out. Ocellus and Smolder are summoned by the Cutie Map to solve a friendship problem. Surely these two things are unrelated. Surely.
Battling Starlight Glimmer, Twilight finds herself in another alternate timeline. Only this time, she finds herself in the Golden Oak Library with the Princess of Friendship: Sunset Shimmer.
An ancient magical artifact causes floating lie meters to appear above everypony's heads. This causes Twilight to reflect on honesty and friendship. Based on an idea by theworstwriter.
Chrysalis sends seven changelings to Ponyville in a clever attempt to break up the Elements of Harmony. Things do not go according to plan for either the changelings or the ponies.
When a colt named "Bad Dude" storms into Celestia's personal study and declares himself as her latest arch enemy, the Princess can't help but nearly gush from the sight. But is there more to "Bad Dude" than his cute exterior would suggest?
The princesses gave their magic to Twilight to prevent Tirek from stealing it. As a result, they end up stuck in Tartarus. The fact that things manage to go downhill here says a lot about the wonders of family.
"Dear Princess Celestia, as your (former) most faithful student, I feel I have to warn you that this is probably a trap. Chrysalis cannot possibly be serious about this. Why would anyone, much less her, want to shoot a documentary on us?"