Lance Armstrong was the most successful road cyclist of all time, winning 7 consecutive Tours de France and inspiring millions with his charity work after surviving testicular cancer. His fame brought him sponsorship deals worth millions and he became one of the sporting world's most dominant presences. Yet almost all his success depended upon doping. Getting away with it for so many years engendered a callous carelessness that brought everything crashing down. This film follows this collapse through interviews with those who uncovered, investigated and worked for Armstrong. A thorough examination of the biggest sporting scandal in our time.