When a tornado leaves a farmer with a heap of scrap metal and no animals, his neighbors are sure it's all over for him. But the determined farmer refuses to admit defeat. His plans are big, and when his neighbors dismiss them with the words, "When pigs fly," they grow bigger still. The farmer sets to work to turn that scrap metal into some rather surprising creatures. Mechanimals will help all of us believe in our dreams, despite what the neighbors may say.