The Barbaric Machine Clan “Gaiark” was exiled from the Machine World by the Engines, who are huge machines that have their own will. With the exile, the Gaiark switched their target to the world of humans and attacked to pollute the Earth in order to make it more habitable for them. This is when three young individuals with hearts of justice stand up as Go-Ongers.

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.