It is more than two years after the Master Chief went missing-in-action following a decisive conflict on Installation the massive extragalactic Forerunner construct known as the Arkas part of the final chapter in humanitys bloody thirty-year struggle against the overwhelming forces of the Covenant Now as a tenuous peace exists between the humans and the Elites a startling scientific discovery is madeand the riddle behind its Forerunner origins could very well seal the fate of the entire galaxy within a matter of weeks In order to unravel these dangerous secrets a heroic hastily formed coalition of humans and Elites must attempt to overcome their differences as they embark on a covert mission back to the Arkan astonishing enigmatic place beyond comprehension from which few have returned and where mortal danger awaits them all.
