He runs into Jin in the jungle on the way back to the caves, and he says "annyong" to him, and Jin says "annyong" back, and given that that means "hello" in Korean, I can't say I buy that as an intentional Arrested Development shout-out. And unfortunately Charlie starts doing the you-don't-speak-English-so-let-me-blissfully-blather-on-about-my-problems thing, and he seems to think that Jin is lucky he doesn't speak English, so he's not caught up in all the "bloody insanity that surrounds us at every turn," like maybe I'm missing something here, but Sun and Jin were on the plane that crashed, they're on the island with all its inherent dangers of boars and giants and Ethans, yet they're lucky that they CAN'T COMMUNICATE WITH THE OTHER CASTAWAYS, so could you maybe back up and explain that one to me again, Charlie, and this time consider how valuable English-language skills might have been to the once-handcuffed Jin, okay? "It's quite beautiful really. You take care of your wife, everything else is someone else's problem. No need to be involved in the decision-making process," and what I wouldn't give for that "tree-shaking behemoth" (that Charlie thinks Jin doesn't have to worry about) to come along right now and bite Charlie in half. Jin finally gets Charlie to shut up because he -- despite not speaking English -- has heard something, a rhythmic whup-whup-whupping, that's speeding up. And Jin's felled by some hard object that hits him in the head, knocking him out (if Jin spoke English, he'd probably be dead now). And Charlie just STANDS THERE, looking befuddled, like maybe his scrawny ass should take cover, but before he does anything, Ethan strolls out of the bushes, looking muddy and bloody. "Charlie, I want her back. I want you to bring her back." Charlie wants to know what Ethan did to her, and he picks up a club, presumably to find out that information, but Ethan just picks Charlie up by the throat and slams him against a tree and tells him that if Charlie doesn't bring Claire back, he'll kill a castaway every day until he does. "And Charlie? I'll kill you last." He lets Charlie go and walks away into the jungle. Not so tough without your Frodo, are you, Charlie? Commercials.
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Charlie's at least had the good sense to tell the castaways about the threat, even if they're not quite as convinced as to the proper course of action. "What do we do? We go out and we bloody kill him!" Locke thinks Charlie should calm down. Of course, Charlie needs to convince them he's right, since Ethan's already kicked his ass twice. But Jack agrees with Charlie. "The man threatens to kill one of us unless we bring him Claire and what, we just wait for that to happen?" Jack says they tracked Ethan once, they can do it again. "You both seem to have forgotten how that turned out," says Locke. Heh. Locke's idea is to "circle the wagons" -- tell a select few and post sentries. Hey, guard duty! What a great idea! And now that the castaways are in danger for the very first time, maybe they should implement that. "'Tell a select few'?" scoffs Jack, because he's so good at telling everybody everything that's going on. But that's apparently what he wants to do this one time, so Locke agrees, and Jack decrees that they'll move everybody into the jungle, and Locke starts wondering if maybe that's just what Ethan wants so he and any help he has can get rid of them in one swoop. "All right, John, you obviously have a plan," says Jack. "So let's hear it." Locke just looks at him like, all right, all that time playing Axis and Allies finally pays off!