Emmanuelle Blachey is a brilliant and voluntary engineer who has moved up the ranks of her firm, the French energy giant, to the executive committee. One day, a network of women of influence proposes to help her to take the lead of a company of the CAC 40. She would be the first woman to occupy such a position. But in spheres still largely dominated by men, professional and intimate obstacles multiply. The conquest promised to be exhilarating, but it was a question of war.