When this final battle is over, everything in the BIONICLE universe will have changed forever.

The Toa Nuva face off against the Brotherhood of Makuta in a final battle to awaken the Great Spirit Mata Nui. But when the battle is over, the Toa make a terrible discovery: Makuta has taken over Mata Nui's body and Mata Nui has disappeared. Makuta promises the Toa that they will never find him or know a minute's peace again.