Earth medical researcher Su He is abducted as a lunar experimental subject and witnesses Northern Commander Yue Chen diagnosed with a terminal illness by lunar medics, who prepare to perform euthanasia. Ignoring the lunar medical ban, she performs a risky puncture and drainage to save Yue Chen, and exposes the secret that the nutrient paste distributed by the Lunar Palace hides toxins, slowly poisoning the lunar inhabitants. The Lunar Palace falsely accuses Su He of attempting to murder the commander and orders her execution. Yue Chen steps forward to protect her, and Su He asks only for a piece of lunar soil because she wants to farm. The two arrive at the Black Soil Zone, where bizarre alien plants with crimson eyes emerge from the underground, triggering the lunar surface cleanup program, lighting up the sealed ancient farm as a massive crisis quietly descends.