The narrative describes a young boy and his 'dig-buddies', which represent his digestive system, and how they work together to keep him healthy. When he begins to eat fast food excessively, the dig-buddies struggle to digest the excess carbohydrates and fats, leading to health issues and fatigue. Ultimately, the boy realizes the importance of balanced nutrition and exercise, making lifestyle changes that restore the health of his dig-buddies and himself.