Its Rider against Rider has an all-out battle begins again, deciding the fate of both Ventara and Earth. With the remaining 10 Rider Decks, he can find the mirror twins of the Ventara Riders on Earth - offering them their greatest desires if they agree to sell their planet out and work for him. The two join forces to fight Xaviax, but the alien general has his own plans. After his world was captured and the remaining 10 Riders "vented" by the evil General Xaviax, Len has vowed to continue the fight before Earth receives the same fate.
Len later explains that he and the Kamen Riders are from Ventara, a world behind the mirrors. Using the deck to fight monsters that have suddenly started appearing over the city, Kit butts head with another Rider - Len (Kamen Rider Wing Knight). While searching for his missing father, Kit Taylor discovers an Advent Deck while at the same time coming into contact with a mysterious dragon. I used almost this exact pic in my Ryuki review. The episodes are long gone from there now, but thanks to the wonders of the internet the whole show is still easy to find if you're curious.
Sadly the show was cancelled before the final two episodes were aired, with them later appearing with the rest of the series on the 4Kids TV website. Produced back in 2008 (six years after the original airing of its base series Kamen Rider Ryuki) by unknown company Adness Entertainment, Dragon Knight ran for a total of 40 episodes and even won a Daytime Emmy for "Outstanding Stunt Coordination". However it should be known that there is another (and vastly superior) attempt out there that goes by the name of Kamen Rider Dragon Knight.
When people think of an American adaptation of Kamen Rider, their minds usually move towards the abortion that is Saban's Masked Rider.