The history of the aliens’ arrival on Earth is told with a series of interviews and news clips. Twenty years ago a huge alien ship appears in the skies over Johannesburg and drifts to a stop and hovers over the city while the residents wait for some sort of contact, whether hostile or benign. Eventually people fly up to the ship and cut their way in. Instead of finding wondrous technology they find a dank, filthy ship filled with millions of starving, sick aliens. One scientist likens them to insects, specifically workers or drones that, after the death of their “queen” is now unable to function effectively.