The Igarashi siblings travel to the forbidden Area 666 to rescue airjacking victims (including their parents!) from the dangerous criminal known as Azuma, who wishes to judge the fate of humanity himself.
Ikki, Touma, and their allies fight against a Devil with ties to Shocker while attempting to help a Kamen Rider from the future reconcile with his now elderly son.
Touma, Yuri and Mei somehow ended up in the World of Zenkaiger while four Zenkaigers, except Juran, ended up in the World of Saber. The reason for their swap is due to a man who wishes to rid the world of heroes. How does a teenage boy manga artist tie into this? And why are they sent into different stories filled with previous Kamen Riders and Super Sentai Teams?
When the evil Olteca convinces an office worker to contract with and unleash the Spider Deadman, Ikki Igarashi transforms into Kamen Rider Revi to stop them! At his side is Kamen Rider Vice... a devil that lives inside his mind that Ikki has made a deal with!