As soon as Lionel turns away, Clark zips off to the Kent farm. The place is in disrepair. A sign on the barn announces that the farm is (or was) up for auction. Clark walks into the barn. "Mom?" He hasn't quite caught on to how this whole switcheroo thing is working. "Dad?" he calls out. "He isn't here," Tess says from the loft. Clark zips up the steps, relieved to see her until she lays a big, wet kiss on him. He pulls away, confused. She gives him a playful grin. "Stop worrying! Father will never find us here." "Father," he repeats. "Our father?" Tess strips out of her jacket, still thinking this is some kind of odd foreplay. She plays along with her big, dumb, hot, adopted brother, calling herself "as redheaded bastard as it gets." Clark is stunned to realize that Tess is a Luthor. Tess tries to free him from his clothes, but he dutifully informs her that she's mistaken him for someone else. She's hurt until she happens to see his forearm and instead of finding some familiar scar, she finds only smooth skin. She backs away from him. "The bastard!" she curses. "He used the mirror box!" She chides herself for thinking she could have ever trusted her hot, treacherous, alien brother. Clark tells her that he's the one who used the box, then asks her who she's talking about. She calls her Clark the "more fun version" of our Clark, which isn't hard to believe, even though we haven't met him yet. She tells Clark that he's in a darker parallel reality, while the other Clark has traded places with him. "Your kinder, gentler world is about to get an explosive awakening," Tess says. Clark looks slightly worried. He's probably hoping the other Clark doesn't destroy civilization. Or borrow his underpants.