While it was the first Kamen Rider to be released independently, it was not screened on major Toei-affiliated cinemas, and was only shown on around 20 theatres during its first day.

our Future" by Da Pump, though the opening features a small portion of the original Kamen Rider theme song, "Let's Go!!

One year prior, two terminally ill hospital patients are given a chance to live by the terrorist organization Sacred Hegemony of Cycle Kindred Evolutional Realm, otherwise known as "Shocker", who relocate them to their island base to convert them into the cyborg Inhumanoids Cobra and Snake.

While successfully completing a mission, he meets Shocker's Major Agents, who order him to kill witnesses to their operations, journalist Asuka Midorikawa, and her fiancé Katsuhiko Yano.

As a result of Hongo's treason, Major Agent Elderly Gentleman has converted the second Hopper and sent him to eliminate their former soldier.

When Bat attempts to kidnap Asuka and turn her into an Inhumanoid, an enraged Ichimonji turns on Shocker and joins forces with Hongo to defeat Bat, Cobra, and Snake at Shocker's base, though Elderly Gentleman and the other Major Agents escape to plan their revenge.

Hideyo Amamoto posthumously reprises his role as Dr. Shinigami through archival footage from the original Kamen Rider series.

He also criticized the manga's editor for approving the low quality illustrations, quoting, "When I get this manuscript, I'm going to turn my desk over and not take it back".