After mending her broken relationship with Princess Aurora, her goddaughter, who she once cursed to sleep forever, Maleficent begins to live a quiet life as the protectress of the Moors. However, her peaceful life is once again set to be disturbed when the princess announces her engagement to Ulstead's crown prince, Phillip. As Queen Ingrith devises a plan to permanently separate humans from fairies, Maleficent and Aurora find themselves on opposite ends of the brewing conflict.