750,000 sexual predators are permanently connected worldwide, 71% of 12-year-olds use at least one social network, and 1 in 5 children have already received sexual proposals online. In the face of this scourge, a number of volunteers have decided to give up their time to fight online pedo-crime. Together, they have formed the association Les Enfants d'Argus. With offices in France, the French overseas departments and territories, and Belgium, the 30 or so volunteers work day in, day out towards the same goal: to flush out child criminals before they make victims.