Hunters in the dark

In 2555 a startling scientific discovery is made ... and 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 Ark -- where mortal danger awaits them all.