During the Full Armor Gundam's second sortie in the Thunderbolt Sector, Io once again confronts Daryl. Daryl narrowly escapes after throwing a Cracker grenade at the Gundam, but he loses his left hand in the process. As the Living Dead Division is desperate to hasten the Reuse P. Device project to combat the Gundam, Daryl has his right hand amputated so that his body will have full control of the experimental Psycho Zaku.
Federation troops and Zeon forces carry out a fierce battle in the Thunderbolt Sector in what was once Side 4 "Mua". The Thunderbolt Sector is a shoal zone composed of the debris of destroyed space colonies, named for the electrical discharges from the metal debris. MS pilot Io Flemming is among the Federation soldiers who are dispatched to the area, where Zeon sniper Daryl Lorenz awaits them on the battlefield.
