While on a corporate research mission, deep under the oceanic outer crusts of Europa, a structure of bizarre design is discovered, its purposes unknown. But what starts as an excursion in scientific discovery quickly dissolves to the stuff of nightmares as something else quickly rises from the depths, something intent on consumption. A small group of survivors is forced to set differences aside as they enter into the race for their lives, trapped within the depths of a submerged facility, enclosed by the terrifying darkness of alien night. While they desperately flee upwards towards the surface and their only salvation, their inevitable end seeks to draw them back down into infinite darkness.