Deep in blackest space, the Drasin have watched humanity's journey to the stars - and determined that a species as barbaric as ours has no place in the cosmos. The wreckage of the starship Odyssey, once Earth's greatest guardian, lies strewn across New York City. Abandoned by all but its captain, Odyssey's sacrifice covered the withdrawal of countless troops as the Drasin assault ravaged the planet. When Captain Eric Weston finally emerges from the rubble, impossibly alive thanks to the mysterious "Gaia", he knows with the Drasin it's kill or be killed.