"When the pressure to be royally perfect becomes too much for Mal, she returns to her rotten roots on the Isle of the Lost, where her archenemy, Uma, the daughter of Ursula, has taken her spot as the self-proclaimed queen of the run-down town. Still resentful over not being selected to go to Auradon Prep with the other VKs, Uma and her pirate gang plots to break the barrier between the Isle and Auradon, and unleash all of the villains imprisoned on the Isle, once and for all."-- Provided by publisher.