The story of UC Berkeley scientist Tyrone Hayes is detailed, who discovered that the herbicide Atrazine causes sexual abnormalities in frogs, effectively turning males into females. The manufacturer, Syngenta, launched a massive campaign to discredit Hayes and prevent the EPA from banning the chemical. Despite the scientific evidence of Atrazine's effects on the endocrine system, the company sought to exploit Hayes' personal life to protect their profitable pesticide.