Conqueror Richard Henry's leads the human forces controlling the planet Kazo. Overlord Bitool is the chief Kazo managing the occupation of earth. Henrys' son, Richard jr., is involved in a plot to overthrow Bitool. Fomina, Bitool's beloved mate, is Conqueror Henrys' trusted house-servant. And nothing is really complicated until humans and Kazos discover a third intelligent race in the galaxy, and try to bring them into the newly developing peace.