So the plan is for Alex to approach, pretending to hold Sawyer and Kate at gunpoint. A side benefit is that it prevents Aldo from making any more notes right in the book, wrecking it for the next person who signs it out. He scrambles to his feet and aims his rifle, but he seems more scared than anything and asks Alex what the hell she's doing. "They must have gotten out of their cages. I caught them in the jungle. Now open up, Aldo!"
But a guard who's reading A Brief History of Time presumably isn't that stupid, and he tells Alex that she's not supposed to be here: "If your dad finds out, he's going to kill you." Alex says her dad (at this, Sawyer and Kate exchange looks) was the one who told her to bring them here, to Aldo, and sarcastically says maybe he should call her dad: "I'm sure he's got nothing better to do." After some hesitation, Aldo decides to do just that (which I can't imagine was what Alex actually wanted), and gets on the walkie-talkie. "Danny, I need Ben." Again, Sawyer and Kate look at each other, while Aldo says Alex has "Austen" and "Ford" with her. Sawyer's already slipping off the loose bonds around his wrists, and then tackles Aldo. Pickett yells into the walkie-talkie for Aldo not to believe anything Alex tells her, and to hold them there. He's on his way. But Alex stomps on the walkie-talkie, smashing it, while Sawyer holds the rifle on Aldo. "Don't get mad at me just because you were dumb enough to fall for the old Wookiee prisoner gag," he says. You know, Sawyer, back in the real world, we have a term for grown men who are constantly referring to Star Wars. And it's not a flattering expression. Alex asks him where Carl is, and Aldo says he has no idea what she's talking about, so Kate tells Sawyer to shoot Aldo in the knee. Both Aldo and Sawyer seem freaked out by this, and Kate actually rips the rifle out of Sawyer's hands: "Give me the damn rifle. We don't have time for this. I'll do it," she says aiming the rifle at Aldo's knee. This is enough for him to start yelling that Carl's in room 23 at the end of the hall, and the keys are in his back pocket. Kate flips the gun and slams the butt into his head, knocking him out.
Inside, the three of them race down the hall, and Sawyer's got nothing but praise for Kate: "Damn good con, Freckles. I almost believed you were going to shoot that boy." "It wasn't a con," says Kate. Either she means that she was prepared to actually shoot Aldo, or -- and I prefer this theory -- that Kate's chastising Sawyer, who once again is showing himself to be one of the worst con artists ever. I mean, pointing a gun at someone to make them do something is a lot of things, but it ain't a con.