Kamen Rider Zero-One: S1 E50 - There Is Only One Person Who Can Stop You Kamen Rider Zero-One

The one who falls victim to Aruto’s revenge after his transformation into Ark-One is not Horobi but Jin. As his grief over the loss of Jin amplifies the malice inside him, will the Ark be created inside Horobi as well? If Aruto and Horobi battle again, it’s likely to turn into an all-out war between humans and Humagears. Starting with Isamu and the Kamen Riders, as well as the people of Hiden Intelligence, everyone gets into action to stop Aruto!