The Vortaak - alien invaders from a distant galaxy who possess an intellect and technology far superior than our own have come to seize control of planet Earth and plunder its resources for their own purposes. All earth inhabitants will be enlisted to do the Vortaak's bidding. All Earth Citizens are instructed to proceed to the nearest outpost for processing. Resistance is futile. To encourage cooperation the Vortaak have seized control of Monster Island and have unleashed all monsters under mind control rays. One monster managed to escape capture and has set out to stop the Vortaak before they can complete their diabolical plan!