Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.
The Shocker Organization sends two of its Inhumanoids to destroy an atomic plant, but their plan is foiled by an invisible barrier that surrounds the complex. Because of this, they abduct a top soccer player and convert him into Tokageron, a lizard Inhumanoid capable of kicking a 5 kg bomb to destroy the plant's barrier. Kamen Rider must once again combat the Shocker and prevent them from destroying the atomic plant.
A grasshopper-like, motorcycle-riding cyborg (joined by another one later in the show) fights the evil organization that transformed him for their evil deeds.
