He's been called the 'greatest of all time' and the most compelling athlete in modern sport. Katie Gornall travels to Jamaica to meet the fastest man in the world, Usain Bolt, fresh from his Rio 2016 Olympics success. On her journey across the island, she speaks to some of the people who have helped shape his life along the way, from his devoted family and his best friend-turned-manager, to his first school teacher. She discovers what life is like off the track for the man who has become Jamaica's national treasure, how he hopes to influence the next generation of sprinters and what the future holds for him post-retirement.