In 2015, six women from La Cantera, Guanajuato, form the civil association MAYOYE to investigate a troubling cancer outbreak among local girls. Their search for answers reveals a shocking truth: their water is radioactive and has likely contributed to the deaths of three girls in just one year. Transformed from ordinary citizens into determined activists, they launch a fierce battle for justice. This gripping, real-life journey shines a spotlight on the courage and resilience they show as they expose the deadly consequences of environmental neglect.