On 29 September 1992 Benoit Chamoux reached the top of Everest and the scientific expedition, led by him and Agostino Da Polenza, manages to set up 15 kg of scientific instruments on the summit, making a first world record possible: to measure the Roof of the World with triangulations and satellites using the most modern instruments available. Six months later, on 20 April 1993, after the calculations made by the teams and professors Giorgio Poretti and Jun-Yong Chen, prof. Ardito Desio announced the result: 8,846.10 metres. Everest had lost 2.03 metres, but it is still the highest peak in the world. At the same time the environmental research carried out by Gianni Tartari shows that pollution is twenty times less on Everest than in the Alps. The film portrays this extraordinary scientific expedition through interviews with the participants who illustrate the difficulties and successful result.