It all seemed an ordinary day on Spherus Magna. Matoran, Agori, Glatorian, and Toa were hard at work, building their homes. Tahu Nuva, Leader of the Toa, and Ackar, Leader of the Glatorian were talking.
"I wonder when Mata Nui will come back," said Ackar.
"Probably not anytime soon," said Tahu.
A Matoran ran up to Tahu. He was Tanma, leader of the Av-Matoran and Captain of the Guard for Tesara.
"The Mask of Life Has been stolen!" he said.
"Oh no!" said Tahu.
"The Skrall ambushed us at the old Tesara arena and stole it from the Archives."
"What will they do with it!?" wondered Tahu.
"I heard them saying how they would use it to Revive Makuta Teridax!"
-3 Days Later-
"What's the plan?" said Pohatu.
"Simple. Ackar, Kiina, and Gresh will ambush and distract the Skrall, while we slip into their lair and grab the mask."
"What if they have already used the mask?" asked Onua.
"Then the Great Beings protect us."