It's just another day, get up, wash, go to work. What's different is that today the Earth has been invaded by aliens – it's just that nobody knows it yet. Deep underground mad scientists are raising monsters from the planet Moongha. Once fully formed they will emerge to spread terror and destruction. Cities will be laid waste to, and the human race will be hunted to extinction.
It can only be hoped that just as in the movies there's a hero around who can thwart their evil plans; otherwise there will be no more "just another day"s for anybody! But who's behind those evil plans? You! You are one of those sadistic, power-thirsty, psycho nerds, eager for revenge after a whole life of study, disregarded by everyone. All of you have received a visit from a mysterious flying saucer, carrying strange alien machinery – an engine that finally brought you POWER! And now you are ready to fight your insane struggle to be the first in destroying the human race. This time no "Klaatu barada nikto!" will stop you...