Stanley Yelnats has terrible luck because of a curse traced back to his no-good-dirty-rotten-pig-stealing-great-great-grandfather. After being unjustly convicted of stealing a pair of athletic shoes, he is sent to a detention center, Camp Green Lake.
Esperanza thought she'd always live with her family on their ranch in Mexico - she'd always have fancy dresses, a beautiful home, and servants. But a sudden tragedy forces Esperanza and Mama to flee to California during the Great Depression, and to settle in a camp for Mexican farm workers.