In this followup to the second-season episode "Tabula Rasa," Superman's perennial nemesis Lex Luthor returns, claming to have completely reformed. Willing to give their former foe the benefit of the doubt, the Justice Leaguers try to protect Luthor from the evil android AMAZO, who seems determined to kill Lex in as nasty a manner as possible. Meanwhile, "Green Lantern" John Stewart tries to get over his busted romance with Hawkgirl. Fans of The Andy Griffith Show will enjoy the fleeting inside joke during the barbershop scene. ~ Rovi