Somewhere in the far-off outlying reaches of deep space, where no human telescope has yet penetrated, floats the planet Zark. Home to a fearsome and aggressive warrior race, this little reddish-brown planet is the center of a vast hegemony spanning hundreds upon hundreds of worlds, all ruled with an iron fist by His Exalted Despoticness, Emperor Krisk the First. Driven by an almost-religious obligation towards subjugation and conquest, the Zarkon culture is brutal and militaristic with every man, woman and child expected to serve the greater glory of the hegemony. Nobody is exempt from service and in fact, their word for 'civilian' or 'one who does not fight' is derived from a root word meaning 'meat' or 'food'. The Zarkon are zealous expansionists and scouting parties are regularly dispatched to scour the galaxy for new worlds to conquer and/or destroy. One such expedition, assigned to the crew of the scout ship Jubilant Fist, was sent to Earth in order to evaluate its potential for invasion...