Yo-Yos are not just nostalgic toys from a bygone era; they are equipment for competitive sport and intricate art. WORLD ON A STRING follows members of the yo-yo community, focusing on five players as they prepare, travel to, and experience the 2010 World Yo-Yo Contest. It's a story of an underground community full of innovation, self expression, loss, friendship, and coming of age set against the backdrop of a dramatic competition.