Los herederos is a portrait of the young children in the Mexican countryside who begin to work at an early age. The film focuses on their daily struggle for survival and their activities in farming, sculpting and painting, shepherding, making bricks, weaving, looking after their siblings, collecting waste, and laboring in a myriad of other activities. They have inherited tools and techniques from their ancestors, but they have also inherited their day-to-day hardship because, as generations pass, child workers seem to remain captive in a cycle of inherited poverty.