Documentary about 21-stone teenager Jack Glassett. It follows him to America as he goes looking for answers in the world's fattest country and hears the shocking news that, without an operation to fit a gastric band, his morbid obesity will kill him. As the government considers lowering the age for weight-loss surgery for thousands of obese children, the film reveals the pitfalls, dangers and successes kids could face if it becomes the new answer to the childhood obesity epidemic.