After the president of Hiden Intelligence passes away, his grandson inherits his company alongside gear that will transform him into Kamen Rider Zero-One.

A.I.M.S. drops by Hiden Intelligence to ask the new president some questions about the amusement park incident when they are attacked by a Huma Gear.

Izu is not feeling well and so she calls a Huma Gear doctor to fix the situation.

Aruto and Horobi have their final showdown.