A New Enemy Awaits —
All that is known about the Forerunners was learned from the various artifacts of their creation, found on the planets Reach, Earth, Sigma Octanus IV, Harvest, Arcadia, Sanghelios, Kholo, and Janjur Qom. The Forerunners only ruled the galaxy for 20,000 years before they disappeared. They were preceded by another extinct race known as Precursors — and now they're up to you to stop!
Get a look at what you're up against by clicking the press play button below: