Bridget and Mike must determine whether the old myth is true that humans use only 10% of their brains. First, they meet up with a neurologist to learn about the brain. Then they visit a neuroscientist at an MRI lab to devise an experiment that will help them figure out whether people really use more than 10% of their brains. Meanwhile, Willie and Madi must use non-verbal forms of communication to complete their challenge-making art and music with Blue Man Group.