The Barnness Of Endoftheseasonitude. Clark is examining some documents. It's not going well. MamaKent brings him a glass of milk and some food, noting that he missed dinner. Clark didn't realize it was so late. MamaKent asks if he knows what Lex and Papa Luthor were doing in those tunnels. Clark says it doesn't add up. Clark has plans and budgets and other things that point to -- MamaKent finishes the thought. She says it points to building a water filtration system. Nooooo! Clark says maybe this is the one time Lex is telling the truth. He walks away, frustrated. MamaKent asks what really happened down there. Clark says that when Lex pulled him out of the rubble, he saw something he hasn't seen in years. A full-on Lex chubby. "My friend," he actually says. MamaKent says they went through a lot, but that so much has happened that sometimes you have to let go. Of the chubby. Clark says she didn't. MamaKent says that after all that's happened, she stood by Papa Luthor. But she says that doesn't mean she trusts him. She wishes she could. She says that he's made an effort, but that nobody can completely change who they are. Clark says that MamaKent gave Papa Luthor that chance. Clark asks if part of what Lex is about might be because of him: "What if I gave up on him too soon?" he asks. MamaKent says he'll never give up on anybody too soon. She says his greatest strength might also be his biggest weakness. "Your hope," she tells him. Oh, that.

What looks like a rebuilt portion of the tunnels. A steel door opens. Lex is led to a room that is guarded. A lackey hands Lex a chart and says a prototype is just days from reaching full capacity. Lex stares at some glass. A light goes on inside. We see a shirtless guy on a slab. It's Explosive Lady's husband. "That's to your wife, I almost died because of you," Lex says to the unconscious man. "Let's hope there's nothing you can't do for me," he finishes. The camera pans down and we see that the Green Beret is wearing tiny, tiny shiny silver shorts. No, seriously. We pan down further to see the man's case file. It is indeed Keenan Wes, the soldier. We go to black on Lex's pleased face.

Next week: Casablahnca.