The year is 2238. Shepherd Cartalia has spent decades building colony X1407 on habitable planet B382, growing it from 100 settlers in a valley to over 1,000 residents across multiple outposts. Earth, 20 light years away, was largely abandoned after its climate became catastrophically unstable. The Human Federation's terraforming package included an AI module that generates adapted edible lifeforms suited to the planet's conditions. The system worked perfectly — until recently. The AI-generated livestock have begun exhibiting violent behavior, hunting down colonists who flee toward the founding settlement. Cartalia must erect defenses to slow the tide while searching for a permanent solution before the colony is overrun.