Investigate one of sports' most high-profile scandals in Cycling's Greatest Fraud. This one-hour special dissects the story of the science and scheming behind what's been called "the most sophisticated and successful doping scheme in all of sports". Piece together eyewitness testimonies and delve into the illicit science to discover how the USADA says the doping plot began and then mushroomed in its complexity. With new interviews from key members of his inner circle, see how Armstrong went to great lengths to protect his secret and his legacy, by using all the powers at his command to silence and attack critics, while assuring the public that his blood was as clean as his public image. But, in the end, his empire collapsed, as the scheming unravelled and the science finally caught up with Armstrong.—National Geographic