Legion: Alpha tells the story of the members of the Legion of the Fallen, who were exiled from Heaven and Hell, to Earth, and now wander it without purpose, without a plan, since the beginning of days. Imanol, the reluctant leader of the Legion and also the first Metatron -The Leader of Angels- tries to avoid the start of the Armageddon: The end of all things. And things worsen while factions of the scattered Legion, Demons, Angels and vampires -who were created by demons as servants- struggle for their own plans, while humans are unaware of these events...