This series aired from 2000 to 2001 and ran for 49 episodes. Yusuke Godai finds an ancient artifact that allows him to transform into Kamen Rider Kuuga to battle the Grongi forces, while deciphering the relationship between Kuuga and the Grongi. This was the first Kamen Rider series in 11 years and the start of the Heisei Kamen Rider Series of shows.