The first saga introduced a world called Metamoor, ruled by a tyrannical ruler named Prince Phobos. Years ago, Prince Phobos caused the disappearances of his parents and took over the capital city, Meridian. To prevent his spreading tyranny, the Oracle lowered a veil over the planet, separating Metamoor from the rest of the worlds under Kandrakar's protection. However, twelve portals opened between Meridian and Earth, creating a series of passageways for the desperate refugees and monsters of Meridian to infiltrate Earth. The portals also weaken the veil and in order to prevent this, generations of Guardians were sent to protect it from collapsing. In the present day, five girls are chosen to become the new Guardians: Wilhelmina Vandom, the Guardian of Energy and the Keeper of the Heart, making her the leader; Irma Lair, the new Guardian of Water; Taranee Cook, the Guardian of Fire; Cornelia Hale, the Guardian of Earth; and Hay Lin, the Guardian of Air. Together, they must prevent the collapse of the veil and promote justice throughout the universe under the guidance of the Oracle of Kandrakar.