Watch The Alien Conspiracy: Grey Skies for Free: How to Stream the Movie Online at 123Movies. . In a not-too-distant future, humankind is caught between two warring factions of aliens: the Greys (who want to annihilate Earth and erase its inhabitants) and the Morphs (who want to preserve the planet and its population for their own selfish means). The first installment of this science fiction series introduces a few of the helpless humans caught in the crossfire, including a once-secret government operative and an altogether average Joe.