Well if you saw the preview for this volume on the last dvd your probably scratching your head at what you just saw. Something that should only exist in the realms of fanfiction ... a Zoanoid Rock Band.
Now with that out of the way the Story takes place a year after the Battle at Mt. Minakami and the world is under the control of Cronos since X-day arrived. Though theres alot of questions to be answered and the last volume will answer most but not all of them since the anime adaption ends but the story still continues in the Manga(which isn't in english btw). Anways this anime has been a great ride and it's sad to see it end when theres just so much more to happen.
Extras: Manga to Anime Comparisons Commentary on Episode 26 Clean Opening and Closing ADV Previews