Los Angeles liberals Delaney and Kyra Mossbacher lead an ordered sushi-and-recycling existence in a gated hilltop community: he a sensitive nature writer, she an obsessive realtor. Mexican immigrants Candido and America Rincon fight off starvation in a makeshift camp deep in a nearby ravine. And from the moment a freak accident brings Candido and Delaney into contact, these four and their opposing worlds collide in what becomes a tragicomedy of error and misunderstanding.