The story of (2552 AD) follows a super-soldier and an AI fighting to save humanity from extinction on a mysterious alien ring-world . The Beginning: Arrival at Halo
: Master Chief and Cortana head to Halo's Control Room to activate the ring before the Covenant can. The Twist: The Flood Halo: Combat Evolved (Story Explained) Halo Combat Evolved
After crash-landing on the ring, Master Chief rallies surviving Marines and rescues Captain Keyes from a Covenant cruiser, the Truth and Reconciliation . They learn that the Covenant believe Halo is a religious "holy relic," but it is actually a super-weapon built by an ancient race called the . The story of (2552 AD) follows a super-soldier