The world has forever changed. Nuclear war has destroyed all governments, left the land barren, and pushed man near extinction. One of the only foods man can eat is the cattleworm, a new species that drags its body along the earth like a snail, but the cattleworm are slowly disappearing. Eighteen-year-old Sean Anders realizes his village is running out of food. After he and three others are chosen to embark on a mission that could save the people...