The Great Leader initiates "Operation: D", a final, all-out offensive to seize control of Japan. Destron revives Deadman-Bat, Fireball-Walrus and Plantaingan who attack Rider Scouts HQ and kidnap Junko and the Scouts. Meanwhile, Kazami Shiro has discovered Destron's headquarters where dwells the Great Leader, but the mutants bury him in a mound of dampening powder made from special alloys. Even if V3 escapes their trap, Crawganna awaits�