Back in Black is an episode from Season 2 Episode 20. Reveiw:In Back in Black it starts with Rex and Black Night talking. He then wonders where Six,Bobo,and Holiday are. He then thinks this place where he is a parlor universe. He even grabs his brothers chin and thinks he is an evil twin version of Caesar. But later in the petting zoo,he sees that Moe's eyes are white. But Caesar hands Rex a bottle of water so he can calm down. Then Black Knight explains that this 6 Months in the future. Caesar shows a new techineek that they made to calm the E.V.O.s down.