Jiang He, a fresh graduate in Plant Protection from Agricultural University, returns to his village to launch organic farming—only to discover a massive infestation of red imported fire ants in the mountains behind the village. He personally funds and erects a quarantine barrier along the village’s edge. But his uncle Wang Fugui, desperate to seize the public field ridge for strawberry farming, incites villagers with his daughter Wang Li, falsely accusing Jiang He of poisoning the land and illegally occupying communal space—and even organizes a signed petition to report him to the township government.