When mysterious forces threaten the glorious city of Metru Nui, Toa Lhikan gives six Matoran the tools and responsibilities of new Toa. These guardians must quickly master their new powers, demonstrate their worth to their honorable leader Turaga Dume, retrieve the hidden Great Kanoka Disks and rescue the inhabitants of their island city. Will Vakama and his five courageous companions be able to stop the ruthless Vahki Enforcers and the mysterious...

The Toa Hordika must fight to resist the effects of the Visorak poison that's slowly destroying and mutating them. But they cannot ignore external enemies - including one of their own number - who seek to destroy them and rule Metru Nui forever.

Mata Nui, once a great and powerful ruler, finds himself in a remote wasteland of scrap parts and burnished metals. After winning a dangerous Glatorian battle, he's asked to help fight the local villagers' real enemies: the evil Skrall and Bone Hunters.