The Bureau du Deuxième lost their best agents in a tragic car accident near Colmar, in the west of France. Only Monsieur le Capitaine knows that the accident is not a coincidence. A new enemy grew in the darkness of a potassium mine. The Armée de l'air et de l'espace is sent to attack the plant. But what happend to Agent May & Agent XoXo? After a two-days-search their bodies are yet to be found ...