Sven and Romelle learn that Zarkon plans to use a large quantity of lazon for something, so go to spy on him. He selects his five-hundred strongest Robeasts to be sent off to be energized with lazon. The two are able to warn the Voltron Force of this, but in order to prevent the army from being launched against Arus and its supporters, Sven disguises himself as one of the creatures and stows aboard the transport-ship as the only hope of discovering where the factory-base is located.
—brainybrailler@comcast.net