Jack's really not interested in screwing around, so he pulls his gun on Sawyer. Sawyer reaches around behind his back (nice reflexes to not call him on that, Jack), only to find that his gun is not there. So let me get this straight: he didn't figure out that Ana was boinking him as a distraction. That, maybe I can buy, given that Sawyer wouldn't be the first guy to let his dick do the thinking. But then he gets dressed, and doesn't notice his gun isn't there? And all this time he hasn't noticed his gun is missing? Are you kidding me? But I guess Sawyer wouldn't now be able to say, "Bitch!" and "She stole my damn gun!" After finding out Sawyer's talking about Ana-Lucia, Jack wonders aloud why she would need a gun at all. Some quick cuts show Ana in the bunker, locking and loading, and opening the armoury door. They might as well have a light bulb go off over Locke's head, as he says, "Jack? I need to tell you something. I ate the last of your Dharma Twinkies. I'm sorry. I'm so, so sorry."
Ana slides a knife across the floor to Henry, and tells him to pick it up and cut himself loose. He asks why. "You know why," she says. Slowly, he does so. "He kept telling us you were misunderstood," he says. He's talking about Goodwin, who Henry says told them that Ana was worthy, and that he could change her. "But he was wrong," he says, folding up the knife and putting it back on the floor. "And it cost him his life." Ana says Goodwin was going to kill her. Henry stands up. "Was he?" he asks, somewhat rhetorically. Ana just asks him if he's done, and Henry says he is. She pulls the gun from her waistband, and points it at Henry. "So this is it, huh?" he asks. And she says it is. But the fact that there's still a whole act to go doesn't really make this the most urgent commercial cliffhanger I've ever seen.
Oh, and regarding the "ad" for the Hanso Foundation during the commercial break? Up yours, ABC. Commercials are when I take a leak. Don't try to trick me into watching the ads between the ACTUAL SHOW.