A small possum stands as Earth's last hope against ecological annihilation. After humanity rapidly decimated the natural world, the villainous Dr. Machino has deployed an army of mechanical constructs designed to strip the planet of all remaining life and organic beauty. Armed with determination and attitude, the possum must battle through waves of robotic adversaries to dismantle Dr. Machino's operation and restore the Earth to a state where living things can flourish once more.