Astronaut Sam Bell is completing a three-year contract with Lunar Industries to mine Earth's primary source of energy, Helium-3. His declining health is causing headaches and hallucinations that lead to a near-fatal accident, rendering him unconscious. After recuperating, an unexpected discovery leads him to doubt his sanity, his identity, and the integrity of the company. Believing he is alone on his mission, his sole purpose is getting back home on his own.
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