So red kryptonite affects Superboy in negative ways. He turns into a total jerk and dissses Andy and Lana. He’s out of control and starts robbing banks and causing a wave of terror all over the city. Then the military decides to revive Metallo to deal with him. Metallo and Superboy form an alliance which goes sour badly.
Eventually reverse psychology from Lana changes him back and he’s the jolly young boy in blue again and apologizes for his actions. Superboy almost crossed over to the dark side for good and it was scary to Lana most of all. She loves him dearly and got through to him, the only one who could.
