In the time before time, a great being watched over the ancient land of Mata Nui, protecting it from harm. But now a powerful entity, Makuta, has arisen, and a dark and evil shadow has fallen over the land. Just when all seems lost, six heroes emerge from the darkness. These mighty warriors are the Toa, and they have a single destiny: Destroy Makuta and restore peace to the land. Theirs will be a difficult mission, filled with grave dangers. In the third Bionicle Chronicle, the Toa face their greatest challenge yet, as they battle a powerful new enemy: the Bohrok Kal.