Discover your inner sparkle! Join Barbie in a colorful, modern-day fairytale filled with fashion, friends, and fun! Barbie and her dog Sequin jet off to visit her aunt's amazing fashion house in Paris, and much to her surprise it's about to be shut down forever. After she discovers three enchanting Flairies with sparkle-magic powers, Barbie comes up with a brilliant idea to save the business.

While attempting to help Frankie Stein learn more about their freakycool scaritage, the fashionably fierce ghoulfriends travel back in time to the first day ever of Monster High. There, they meet Sparky, a skullastic teen with an obsession for creating life. But when Sparky follows the ghouls through a killer time portal to modern-day Monster High, the event results in eight of them fusing together into four creeperiffic hybrid Monsters.