Mike and Willie are challenged to learn about the human balance system. They visit an otologist and learn that the brain uses input from the eyes, muscles, and inner ear in order to stay balanced. To investigate this further, the kids perform tests to see what happens when the three inputs are missing or distorted. Then they suit up in a Ruff costume and demonstrate their newfound balance wisdom to Ruff by balancing over a pit of shaving cream! Bridget and Rosario learn how to design and build puppets and then perform a puppet show for the kids in a hospital.