Fire Up! Captain System
With Blanc Base down, the Dark Axis start phase two of their invasion. Their Doga bombers attach control horns to the mobile citizens, and it won't be long before they have complete control over the robots in Neotopia! To stop this, the S.D.G. initiate the 'Captain System', but to do that, they need the Re-equipt Ring, which has fallen behind enemy lines...
Aired 09/06/2004EP 23 - Fire Up! Captain System
SD Gundam Force
The land of Neotopia is attacked by the Dark Axis, evil invaders from another dimension who wish to conquer this land. Neotopia's answer: the secret Super Dimensional Guard and their defenders, the Gundam Force. Led by Captain Gundam, the Gundam Force and its team of Gundams with special abilities are aided by a boy named Shute as they stop at nothing to defend the land from the Dark Axis and to defeat them once and for all.
(Source: Anime News Network)