Soon-to-be Queen Twilight, daughter of Sunset Shimmer and Raphael Hamato, lives in Auradon, a place where the fairytale heroes live. She decides to allow four Villain Kids from the Isle of The Lost, a run down place where fairytale villains were banished, come to Auradon. They are: Sonic, son of Mephiles, Marinette, daughter of Hawk Moth, Rainbow Dash, daughter of Adagio Dazzle, and Tails, son of Master Frown. Their parents want them to steal Celestia's wand so they can break the Isles barrier. But will the suceed? Which side will they choose: good or evil?

In the enchanting world of Equestria, in the colourful Ponyville, a handsome but powerless anthropomorphic blue hedgehog, Sonic, lives in a hospitable flower along with his companion, Chip, an anthropomorphic flying chihuahua. Longing to have own powers just like his cat-friend, Blaze, Sonic discovers that the wicked Eggman has weakened all flying and magic creatures in his magical land, and now, they are unable to fly nor use their powers. To save the beloved Equestria, Sonic must summon up the courage to find the Guardian, Elsa. However, can a single little hedgehog without powers thwart Eggman's plans? NOTE: No copyright infringement intended. NOTE 2: I do not own the rights for these films. NOTE 3: Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.

Inside the castle, Sonic tells Spike and Rarity to look for stairs so they can reach Princess Twilight and Princess Fluttershy. Sonic puts on some armor of a dead knight. Suddenly, a rainbow pegasus, Rainbow Dash, breathes fire and chases after Spike and Rarity. Sonic grabs the Rainbow Dash's tail, but it shakes him off, sending him flying into Princesses' room and waking them up. Meanwhile, Rainbow Dash has Rarity and Spike trapped. Spike and Rarity complements her on hers white teeth, notices that she's a female pony, and gives it more appropriate compliments. Rainbow Dash picks them up and flies happily away.

As the group walk towards Duloc, Sonic makes funny sounds then Twilight does it too too. Suddenly a man swinging from a vine grabs the princesses. He calls out for his team. They all appear, dancing and singing about him, Alex. As he brandishes a knife, Axel finishes the song by saying he will cut out Sonic's heart, but Twilight and Fluttershy swings down and knocks him into a boulder. They defeat the group with Kung Fu mixed with "The Matrix". Sonic, Spike and Rarity are amazed. Sonic asks Twilight where they learned that, and she replies that when two lives alone two has to learn these things. She sees that there's an arrow in Sonic's butt. Spike and Rarity starts panicking, so princesses sends them off looking for a blue flower with red thorns. When Twilight tries to pull out the arrow from Sonic's butt, he squirms, falls to the ground, and Twilight lands on him - just as Spike and Rarity returns with the flower. They both get mad because they thinks they just wanted to be alone. When Twilight pulls out the arrow, Rarity and Spike sees the blood and faints.