Kirby heads to Tulsa, Oklahoma, where he takes the wheel of the Gaining Ground Book Bus––a school bus converted into a free book delivery service. Together with a team of dedicated educators, Kirby races around the city, delivering 3,000 children's books in a single day. Kirby witnesses firsthand how the lives of both those receiving the books, and those distributing the books are impacted by the colorful library-on-wheels.