The Haunting of Andy McAlister Superboy : Season 2 Episode 22

Andy, Clark and Lana visit Andy's uncle's mansion for the weekend, only to become trapped in a wall containing a world with ghosts from the wild west. A group of outlaws seek revenge against Andy's ancestor who put them there. Superboy, now without powers in this world, must simply get them back on the other side of the wall to get rid of the ghosts.