Gai, Galeon, Volfogg, ChoRyuJin, Goldymarg, Mic Sounders and Mamoru. These are brave heroes who hold the fate of humanity in their hands!

The Four Machine Kings finally take the fight to GGG personally while all of Tokyo is turned into an enormous Zonder metal plant. Before every person in the city is Zonderized, the brave robots must fight with everything they have, revealing Mic Sounder's true purpose, sacrificing one of their own, and even activating the ultimate weapon, Bullet X, which supercharges the G-Stones with the side effect of burning them out permanently! But they have to hold out against the original cause of the Zonders, Gai's space accident and the death of Mikoto's parents...

Contains episodes 26-49.

Special Features: Textless Opening and Closing.

Spoken Languages: Japanese, English subtitles.