Defenders of the Earth S01E46 - The Prince Makes His Move (1)

Ming summons his son Kro-Tan to Earth, but instead of obeying his father's orders the youngster plots to use the Defenders to destroy his father in an effort to become ruler of Mongo. Disguised as a handsome earthling, Kro-Tan befriends Jedda, who shows him around Monitor. When Rick admonishes Jedda for bringing a stranger into Monitor, Kro-Tan tells her that he is an inhabitant of Mongo and that his destiny is to destroy Ming.