Millanno: a holiday planet of extreme wealth and extreme leisure - on one side. The other side of the planet teems with politicians, administrators, and also criminals. When the Professor and Ace decide to take a holiday, they are unwillingly pitched into a battle for supremacy on the planet. Separated and suddenly finding themselves on the lost and lonely Isle of Prosperity, they must find each other. But standing in their way is the determination of a mysterious figure from the past to reclaim the directorship of the planet.