Kazami Shiro's rival, Yoshioka Masaru, and other top racers in the All Japan Motorcross Championship, are captured by Destron's Lens-Ant. He transforms them into the Destron Hell Squad in order to rob a convoy carrying a nuclear-powered satellite. The mutant also captures Junko and Shigeru! Will Shiro save his friends? Can V3 defeat not one, but two mutants, single-handedly?

Destron's Razor-Starfish teams up with Lens-Ant to attack V3, and they send the Hell Squad to steal a shipment of nuclear satellite fuel. Meanwhile, Tachibana Tobei and the Rider Scouts are captured while searching for Junko and Shigeru. Can Kazami Shiro find the antidote for the Hell Squad, rescue his friends from certain death, and take on both mutant cyborgs?

Kotaro must rescue two artists abducted by Golgom to become psychic spies in order to ruin the development of technology for civilization's collapse.

Kotaro investigates suspicious auto accidents leading to the victims being used for Golgom's army for causing chaos throughout the world.