From information XIII & Jones learned from the boy Giordino kidnapped, they travel to Montana, the site of a e-commissioned blast chamber… & potentially, the hiding place of Max Serle & the information from the final watch. Max, one of the conspirators in the Costa Verde mission & a dangerous paranoiac, has walled himself in the blast chamber, having tricked it out with deadly traps. It’s up to XIII & Jones to fight their way through the installation to get to Max & convince him of who XIII really is before Irina & her team of mercenaries can get there first.