Special Thanksgiving feature. A feature documentary about two friends, one acre of corn, and the subsidized crop that drives our fast-food nation. In the film, two friends move to the heartland to learn where their food comes from. With the help of neighbors, genetically modified seeds, and powerful herbicides, they plant and grow a bumper crop of America's most-productive, most-subsidized grain on one acre of Iowa soil. But when they try to follow their pile of corn into the food system, what they find raises troubling questions about how we eat---and how we farm.