Doctor Keitarō Shido, an acclaimed scientist, has been kidnapped by the terrorist organization Neo-Shocker to exploit his expertise in robotics technology.

Explaining that he can turn the camper, Hiroshi Tsukuba into a powerful Neo-Shocker warrior, they allow Doctor Shido to operate.

However, he quickly turns the tables on them, transforming Hiroshi, not into a kaijin, but the powerful warrior Sky Rider, using his newfound abilities to combat the evil Neo-Shocker menace.

Shocker is once again reformed as the Neo-Shocker (ネオショッカー, Neo Shokkā) organization, playing a role in numerous disappearances and terrorist attacks against the Japanese government.

Spreading their influence across the world, their goal is the genocide of about two thirds of the current human population on Earth with them as the dominant majority.