After spending several years in a mental institution, Charlie (Michael Douglas) is sent home, reuniting with his teenage daughter, Miranda (Evan Rachel Wood). Charlie becomes obessed with the notion that a long lost Spanish treasure is buried underneath their local suburban California Costco. Disconnected from reality and his daughter's life, Charlie's erratic behavior futher strains their relationship and completely disrupts Miranda's peaceful existence.

Initially skeptical, Miranda soon finds herself joining in Charlie's questionable antics in an effort to believe in her father and give him one last shot at accomplishing his dreams in this darkly funny, exciting and surprisingly hopeful take on the modern family and the American dream.