3x13 - OK K.O.! Let's Be Heroes

Carol drops K.O. off at Boxmore for the weekend so that he can spend time with Professor Venomous. K.O. is disappointed to learn that Venomous is nothing at all like him, so he suggests that they look for Shadowy Figure so that they can "destroy" him. As they look for clues on where he might be, Fink is holding a secret back about her villainous boss.