Trama
Beginning in 2009, Alex Gibney followed Armstrong for four years chronicling his return to cycling after retirement, as he tried to win his eighth title. Unexpectedly, Gibney was also there in 2012 when Armstrong admitted to doping, following a federal criminal investigation, public accusations of doping by his ex-teammates, and an investigation by the US Anti-Doping Agency, that led USADA's CEO, Travis Tygart, to conclude that Armstrong's team had run 'the most sophisticated, professionalised and successful doping program that sport has ever seen.’