The summer before Enzo enters the 6th grade, his dad takes a job with a company cooler than Nike, Timberland, and Marc Ecko. Even better, he gets to spend the summer traveling with his father and the CEO/designer/head of the company, a cross between Steve Jobs and Lance Armstrong.
Working out all summer, meeting new people, and growing up makes him come back a different kid, more confident and self-assured. But when all the other kids, especially the girls, start paying attention and treating him differently, he ascribes it all to his cool prototype lucky cap. And when it disappears, Enzo stops at nothing to get it back so he won't lose his new-found status.