Alex Hugo retrouve un jeune homme qui est prostré dans une voiture. Il se nomme Léo Melino ; l'émotion est forte pour Angelo qui a participé aux recherches de Léo il y a sept ans quand celui-ci avait 11 ans.
In the heart of a nature reserve closed to the public, the body of a guard is found. He lived there alone and isolated on the edge of a high-altitude lake. A very strange investigation then begins: very few people, all scientists, were in this place cut off from the world.
For the good of the cause: One morning, two men hold up a butcher's lorry and steal its load of meat. Alex quickly finds the thieves: recently arrived in the region they are ready to do whatever it takes to help those in greatest need. Their plan is to strike increasing-ly harder.
