Whether it be dominance, astounding skills or changing the nature of their sport, in some cases even defining a time, this series offers a unique insight into the motivations, achievements and personalities that put these athletes amongst the greatest of all time. From Nadia Comaneci, the first gymnast to be awarded a perfect ten, to the legendary Carl Lewis who won four golds in the 1984 Los Angeles games, these famous names have left their mark upon the sporting world. Also included are fascinating insights into the careers of 400m hurdles hall-of-famer Ed Moses, perhaps the greatest distance runner of alltime Haile Gabreselassie and pole-vaulting maestro Sergey Bubka. Plus, there are in-depth profiles of the incomparable Michael Johnson and Usain Bolt, two undoubted legends of the track. Complete with exclusive interviews, footage and unique access, these programmes create a full picture of a group of men and women who have changed the face of sport.