<p><em><strong>New York Times</strong></em><strong> bestselling author Tim Green has written an unforgettable story—inspired by interviews with real-life cancer survivors and insider sports experience—showing a brave boy who learns what it truly means to be unstoppable.</strong></p><p><strong>"Absolutely heroic, and something every guy should read." (</strong><strong>National Ambassador for Young People's Literature emeritus Jon Scieszka)</strong></p><p>If anyone understands the phrase "tough luck," it's Harrison. As a foster kid in a cruel home, he knows his dream of one day playing in the NFL is a long shot.</p><p>Then Harrison is brought into a new home with kind, loving parents—his new dad is even a football coach. Harrison's big build and his incredible determination quickly make him a star running back on the junior high school team.</p><p>On the field, he's practically unstoppable. But Harrison's good luck can't last forever. When a routine sports injury leads to a devastating diagnosis, it will take every ounce of Harrison's determination not to give up for good.</p>