Their Italian ancestors crushed grapes with their toes to make wine for the family. 100 years later, two brothers ran the largest winery in the world.

Earnest and Julio Gallo are the best-known and most successful vintners in America. But the masters of the worldwide winemaking empire have largely hid behind carefully crafted marketing campaigns, rarely granting interviews and not deigning to respond to the often-negative reviews and reports surrounding their products. This video goes behind the veil to explore the lives of Ernest and Julio Gallo, following them from their childhood days laboring in the field to the unfulfilled dream of selling their wines in France. Learn why a third brother, Joseph, was shut out of the family business, and find out about the twin tragedies that bookend the prolific period that saw Gallo's rise to the summit. And see how their passion has been passed on to their children and grandchildren, who are following in the brothers' footsteps.

One specialized in making wine, the other in selling it. Together, they revolutionized an industry.