Host Philippe Simay travels to Bolivia's Altiplano to visit the Chipaya, a people who settled one of the harshest landscapes on earth after conflicts pushed them off better land. Elias, a local guide, walks him through what a home means here: not a single building but a scattered network of putukus, small earthen huts built to withstand the plain's relentless winds, spread across kilometers between village and field. The film shows how the Chipaya keep the salt-scorched soil productive through lamea, an ancient irrigation technique that channels rainwater across the land to leach out salinity and fertilize the ground. Simay sits with families, watches the construction of the putukus, and follows the daily work of maintaining a self-sufficient existence in terrain that seems built to reject settlement. Part of the Habitats of the World series, the episode treats architecture as a direct answer to environment, showing exactly how a community engineered a livable home out of a landscape most people would consider uninhabitable.