Turns our that that the invaded where subjugated within a year, and are forced to continue to crank out a monster a week for the heroes to crush in front of their adoring fans, but one nameless combatant had enough. This Nameless Combatant D will rebel against the might of the Ryujin Sentai and destroy them all... from the inside!
The upcoming anime will be directed by Keiichi Sato (Tiger & Bunny). Details such as additional staff members and release date will be announced in a later date.
[Source: Anime News Network]