In his most dramatic and hard–hitting story yet, former NFL defensive end Tim Green writes about what it takes to be a winner, even when it seems like fate has dealt an impossible hand. Inspired by interviews with real–life cancer survivors and insider sports experience, this unforgettable story shows a brave boy who learns what it truly means to be unstoppable. As a foster kid in a cruel home, Harrison knows his dream of playing in the NFL is a longshot. Then, Harrison’s luck begins to change. He is brought into a home with kind, loving parents—his new dad is even a football coach. Harrison’s big build and incredible determination quickly make him a star running back on the junior high school team. But Harrison’s good luck can’t last forever. Harrison has a cancerous tumor on his knee that must be removed. He goes to sleep in the hospital, and when he wakes up, his leg from the knee down is gone. At first, Harrison is devastated. But with the help of his father’s amputee friend, he rallies through a rigorous training program to prove himself unstoppable, not just as a player, but as a person.