Speed is racing in the Fujiyama Grand Prix in Japan. At the same time, ministers and diplomats from all over the world have gathered to attend the Piecemeal Conference.
After winning the race, Speed and Trixie go sightseeing only to stumble upon a gang of assassins who are planning to take over the world. Their scheme is to kill off all the conference attendees,
It's up to Speed Racer to save the World!