Humans find the Advent Decks and use them to become Kamen Riders in order to fight in a mirror world against a great evil, known as General Xaviax.
The first episode, "Search for the Dragon", premiered on The CW4Kids as a "Sneak Peak" on December 13th, 2008 at 9:30am (ET). The series then returned on January 3rd, 2009 with this same episode at its current timeslot, 11:30am (ET). New episodes continued to premiere on Saturday mornings at 11:30am (ET) on The CW4Kids. "For Ventara and Earth Part I" premiered on December 26, 2009 at 11:30am (ET) as the final episode of Kamen Rider Dragon Knight to air on television. The last two episodes of the series can be seen on 4KidsTV.com.