Mal, Evie, Carlos, and Jay have received threatening messages demanding they return home. They have a sneaking suspicion that their villainous parents are behind the messages, and something Evie sees in her Magic Mirror confirms their fears. Although Maleficent's just a tiny lizard after her confrontation with Mal, could she have found a way to escape? Mal and her friends determine to sneak back to the Isle to get to the bottom of the mystery.

Mal, Evie, Carlos, and Jay take on the daughter of Disney villain Ursula the sea witch, in a race to save King Triton's magical trident.

Cassel Sharpe knows he's been used as an assassin, but he's trying to put all that behind him. He's trying to be good, even though he grew up in a family of con artists and cheating comes as easily as breathing to him. He's trying to do the right thing, even though the girl he loves is the one he should stay the farthest away from. And he's trying to convince himself that working for the Feds is smart, even though he's been raised to believe the government...

"Cassel Sharpe sabe que lo han utilizado como asesino, pero est̀ intentando pasar p̀gina. Se esfuerza por ser buena persona, a pesar de haberse criado con una familia de estafadores en la que mentir es tan natural como respirar. Procura hacer lo correcto e intenta convencerse de que hace bien al colaborar con los federales, aunque siempre le hayan ensęado que el gobierno es el enemigo de todos los obradores de maleficios. Pero ahora que su madre...