Agito unleashes his Shining Form and combines his strength with the other Riders and defeats the El of Water. The OverLord of Darkness realizes that Agito's power has become too strong and he must deal with the Riders directly to save his beloved humans.

After Kaoru Kino's seed of Agito is stolen from him the OverLord of Darkness turns his sights on Ryo Ashihara, looking to take Gills' power.

Shoichi Tsugami and Mana Kazaya go to Toru Hojo for answers about Mana's father's murder but is the truth they uncover more than they can handle?