Northern Equestria's Crystal Empire has reappeared after being afflicted with a curse that made it vanish for 1,000 years. Princess Celestia asks Twilight Sparkle and her friends to protect the empire from disappearing again.

After Princess Celestia commissions her to keep Crystal Empire from vanishing again, Twilight realizes that she must find the missing Crystal Heart in order to restore the empire's reputation and strength before it disappears again.

Overwhelmed with having to choose just one friend to spend time with, Pinkie Pie uses a magic mirror to clone herself.

The Cutie Mark Crusaders are crushed when Babs Seed rejects their invitation to become a fellow Crusader and instead become a bully.

Wearing a mysterious amulet, Trixie returns to Ponyville for her "unfinished business" with Twilight Sparkle.

Over a campfire, Rainbow Dash decides to share some imaginative and spooky tales, causing Scootaloo to have frightening, vivid nightmares; Scootaloo wants to get rid of her nightmares but doesn't want the others to think she is spineless.

Rainbow Dash receives an invitation to attend the Wonderbolt Academy but questions whether she is Wonderbolt material.

Granny Smith agrees to let Applejack lead the Apple Family reunion but Applejack loses sight of what is truly important.

After Applejack saved Spike, he insists on fulfilling the Nobel Dragon Code by repaying her with excessive help around the farm.

Princess Celestia has decided that the rambunctious Discord needs to be tamed and commissions the ponies for the job; Fluttershy believes that Discord deserves a second chance but she faces opposition as the only one who thinks so.

Spike finds himself in over his head after convincing Twilight and her friends to let him pet-sit all of their critters in exchange for a few gems.

Twilight Sparkle wakes up one day to find that all her friends' cutie marks have been switched! Can she fix something as bad as an altered destiny?