Kamen Rider vs. Shocker is the first original Kamen Rider movie.
Professor Daidōji has developed a gravity machine called the GX Device. Unfortunately, Shocker wants it; so they attack the professor and destroy his laboratory, but come home empty-handed. Shocker's agents find out that the plans for the GX Device are with Daidōji's daughter, who is celebrating her birthday. Now the Kamen Riders, along with FBI agent Kazuya Taki, must protect Daidōji's daughter and prevent Shocker from obtaining the plans.
This movie contains examples of the following tropes:
- Legion of Doom: Various Shocker kaijin come back as part of a Revived Kaijin Corps in this movie.
- MacGuffin: The GX Device.
