Zarkon allies himself with King Cova of Pollux, a planet sworn against Arus since they are descendants of an Arusian prince banished for his immorality. His eldest son Avok volunteers to be turned into a Robeast to personally conquer the world he would stand to inherit. Both enemies of Arus plan to betray one another, but Lotor is attracted to Cova's daughter Romelle, who bears a striking resemblance to Allura. Romelle wishes for differences to be settled between the two worlds, and so do the Voltron Force, who approach Pollux in an attempt to prevent war - but they still have to deal with Lotor and the transformed, powerful Avok.
—brainybrailler@comcast.net