The Covenant rules the Earth — the Flood has been unleashed — and the fate of life everywhere hangs in the balance. Master Chief, a genetically engineered super soldier, is the last chance for humanity's survival. Stowed away on a Forerunner ship, he rushes back to Earth to defeat the Covenant once and for all. Hopelessly outnumbered, his outlook is bleak. But when you are bred for battle, you fight past the breaking point and bow to no one. It's all been building to this — a desperate, final war that leads to a soul-shattering climax of epic proportions. Help this incredible hero stop the Covenant, destroy the Flood and save the lives of every person on the planet.