Halo 3 will pick up where Halo 2 left off. The Master Chief is returning to Earth to finish the fight. The Covenant occupation of Earth has uncovered a massive and ancient object beneath the African sands - an object who´s secrets have yet to be revealed. Earth´s forces are battered and beaten.
The Master Chief´s AI companion Cortana is still trapped in the clutches of the Gravemind - a horrifying Flood intelligence, and a civil war is raging in the heart of the Covenant. This is how the world ends...
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