The story follows the life of Diana, a pre-teen who lives in a neighborhood called Buenaventura. Diana and Christian, who has just moved to Mexico due to his parents' divorce, quickly become best friends, despite their families hatred for each other. However, the neighbors of Buenaventura are in danger of losing their homes, their school and much more, because the evil old Severiano plans to tear down the neighborhood and build an enormous shopping mall in its place. To accomplish his plan, Severiano is willing to resort to any means, and will provoke a series of disasters to drive the inhabitants away.
