On granddaughter, Milly's 12th birthday, Grampa is given an ultimatum from daughter, Janet.  Either stop with the stories about being raised by aliens or prove that he was.  Otherwise Janet will have him assessed for mental competency.  Now Ethan has a problem.  How can he prove it, aside from calling out to Xerix for help?  That's easier said than done. Floog are forbidden to reveal their existance to humans. The new Gizmok government just finds humans far too violent to expose themselves.