The year is 2123. Earth is dying from the damage humanity has done to it, so the exploration vessel UNS Amazon sets out as part of a larger fleet to locate new worlds suitable for settlement. On approach to Saturn, the Amazon is ensnared by a colossal alien entity disguised as an asteroid. Commander Jason Barr gears up and ventures out to investigate — and whatever he finds out there will determine whether the mission, or the crew, survives.