After successfully saving Captain and Zero, Chief Haro, leader of the S.D.G.(Super Dimensional Guard) makes Shute an official member of the Superior Defender Gundam Force. Good thing, too, because the Dark Axis commander has added the weapons-loving Destroyer Dom to the Neotopia invasion force!

Bakunetsumaru and Dr. Bell Wood are in a fierce argument. Bakunetsumaru needs the Dimensional Transport Device repaired, in order to return to Ark, but Bell Wood feels fed up with the project. Meanwhile, four Zakos take control of a massive digging robot, and use it to wreak sub-terrenian havoc!