Based on the book by Lily Brooks-Dalton, The Midnight Sky is a sci-fi movie that follows a reclusive scientist in the artic who attempts to warn astronauts on their way back to Earth of a global catastrophe that has occurred. Thirty years after Earth's population has been decimated, the surface remains irradiated, and Augustine Lofthouse remains on his lonesome at a massive arctic base. Attempting to find the ship's crew that found a habitable surface for humans, Lofthouse races against time to keep them from returning to Earth and dooming the human race.