Pluto is not happy that Earthlings have demoted it’s status to Dwarf Planet and they are doing something about it. They discovered a trick in the space time continuum to give them an infinite number of attack drones. Earth cannot win until it reclassifies Pluto to its rightful status as a planet. In the meantime it is up to you to keep the Plutonian drones away from Earth. Earth needs you, you are our only hope!