Topanga Canyon is home to two couples on a collision course. Los Angeles liberals Delaney and Kyra Mossbacker lead an ordered sushi-and-recycling existence in a newly gated hilltop community: he is a sensitive nature writer, she an obsessive realtor. Mexican illegals Candido and America Rincon desperately cling to their vision of the American Dream as they fight off starvation in a makeshift camp deep in the ravine. And from the moment a freak accident...