Until yesterday Catherine Destivelle was known only a leading expert in the acrobatics of sports climbing in various places. The film shows her during her training and physical preparation, and the equipment needed to tackle a new and important activity, this time in the Karakorum mountains. On the Trango massive, Catherine Destivelle and Jeff Lowe, form an exceptional party. The film follows them during the climb of a nameless tower with extremly difficult passages which they overcome with apparent ease until they reach the top.