In much of the West thin is beautiful, and fat is taboo. But a new health epidemic is sweeping the planet: obesity. We follow the story of Alan, who at 650 pounds is imprisoned in his own bedroom. In Mauritania mothers risk the health of their daughters by force-feeding them to fatten them for marriage. In the U. S. A., Deidra, a 450 pound model is fat, proud and happy. And 24 "plus size” women push the ideals of beauty when they compete in the Miss Plus America Pageant.