Meg Donnelly, Ruby Rose Turner, Issac Ryan Brown, and more Disney Channel stars jam out to Break This Down from Descendants 3! Watch Descendants 3 on Disney Channel and in the DisneyNOW app! Mal (Dove Cameron), Evie (Sofia Carson), Carlos (Cameron Boyce) and Jay (BooBoo Stewart) return to the Isle of the Lost to recruit a new batch of villainous offspring to join them at Auradon Prep.