It's the year 2025. Just as humanity stands on the cusp of its demise, extraterrestrials show up and promise to solve all of Earth's problems: energy shortages, disease and poverty are soon to be a thing of the past. But what's in it for these mysterious visitors? As leaders of an underground resistance force who can guess at the reason behind the aliens' motivations, players head out on action-packed PvE campaigns to uncover the truth.