Twenty years ago, all of the villains were banished from the United Kingdom of Auradon onto a forbidden island named "The Isle of the lost". Time passes, and the 16 year old teenage son of Queen Belle and King Beast offers a chance at redemption to the trouble making offspring of Cruella De Vil, Jafar, The Evil Queen and Maleficent. These kids are allowed into the kingdom to attend a prep school along with the children of the heroes. There they must decide if they want to follow in their parents foot steps, or embrace their inner goodness and save the kingdom from the evil.