A huge doping scandal erupted at the 2001 cross-country skiing world championship in Lahti, Finland, leading to large numbers of disqualifications. Athletes from the host country in particular had made generous use of illegal performance-enhancing drugs. It was to be the precursor of more drug cases at the Winter Olympics a year later in Salt Lake City. When Heroes Lie analyzes the history of doping from the 1970s to the present day, using archive footage and interviews with skiers, coaches and experts.

"A lie bigger than you can imagine"