A human survey team on Chelicer 14d discovers their weather station destroyed, evidence of a local predator. Xenobiologist narrators Greffin and Merrit investigate, only to be ambushed by massive armored creatures. These 'mega-fleas' use mechanical tension to jump kilometers, revealing a hidden ecosystem on the arid planet.

The team's mission was to study Species 11, the 'Farmers' cultivating a valuable crop for human superconductors. Human expansion, led by Concerns, had already displaced the locals, assuming they had no natural predators. The brutal attack proves that assumption catastrophically wrong, threatening the entire human presence and their resource-gathering operations on the planet.

The story frames humanity's resource-driven colonization against the backdrop of a discovered, lethal ecosystem. What began as a routine survey becomes a fight for survival, challenging the exploitative model of interstellar expansion. The incident forces a reevaluation of humanity's place in the galaxy and the consequences of ignoring native life.