But while that film stoked a wave of interest in the story’s future, Alien: Earth takes things back into the past with a story set between Alien and Aliens. What Is The Alien: Earth Release Date? Alien: Earth Season 1 has eight episodes dropping weekly until a September 23 finale. Will There Be An Alien: Earth Season 2? While Alien: Earth hasn’t been officially renewed for Season 2, there are rumors that a second season is already in development.