El Invisible Sustento de la Frontera explores the lives of women in Latin America’s border regions, focusing on the Andean Triple Frontera and the Paraná Frontera. The documentary reveals how these historically invisibilized women sustain their communities through the informal economy and cross-border trade, while confronting and resisting structural violence. Rather than being mere dividing lines, borders become spaces of resistance and opportunity for them, where their resilience is transformed into a unique form of survival.