On September 1st, 1951, James Grayson and Maquis members Colonel Roland Mallery and Lt. Raine Bouchard investigated the Bonn conversion center. While approaching the facility, the group became separated and Grayson fought his way through the ruined ghost town and was able to assists two Maquis soldiers to destroy a Hammer before entering the facility and able to regroup. However, Raine was captured and falling into the initial stages of the conversion process. Grayson refused to leave Raine behind and managed to rescued her while Grayson intended to destroying the facility by planting detonation charges in the facility's power core. After they escaped, Grayson's charges detonated and the entire facility was destroyed.