As they leave the store, Qualls is amazed that Hurley finally made a move after crushing on Starla for months, calling him "frickin' Fabio." He wants to know what's gotten into him. "Nothing," says Hurley. "I just wanted to ask her out before…" He trails off. "Before what?" asks Qualls, and Hurley says "nothing."
Underneath Swan station, Sayid and Jack are crawling along the pipes and concrete pillars. "This is the last duct," says Sayid. "I believe we're under the area where we began. They poured concrete all the way down here too." He's brought his titanium battering ram with him and starts hammering again. No good, it's just as thick. Jack suggests that there might be a way around it, so they crawl around looking. Jack wonders what all the pipes are, and Sayid's best guess is that there's a "geo-thermal generator" behind the wall. "That's the power source," he explains. That's a better guess than mine, which would have been a really, really long extension cord from Madagascar. Sayid notes that the pipes are very hot. Anyway, they're blocked from finding out what's behind the big door, so they pause for a moment while Jack asks Sayid what he thinks the whole Swan station thing is about. "The last time I heard of concrete being poured over everything in this way was Chernobyl," he says. I don't know what that means. Doesn't Chernobyl play for the Spurs?
They're interrupted from considering this by a sudden clanging and hissing of the pipes. "Did you hit something?" asks Jack, and Sayid says, "I don't think so. I think it's coming from over there." Jack's going to go check it out.
He pushes up a grate in the floor and climbs out, as we see steam billowing along the floor and hear the sound of water on concrete. And it turns out, the entire Swan Station experiment is a contrived reason to get Kate a shower scene. Jack can't stop grinning as he asks a surprised, towel-clad Kate how the shower is, and she says that the pressure sucks and the water went cold at one point and it kind of smells like sulfur, but hey, it's a shower. "You could use one," she suggests, not in a "you stink" kind of way, but in a "concern for his welfare" kind of way, and she's not too pissed to be caught in the shower by him, but I doubt she would be. Maybe later, says Jack, and she says she'll leave the shampoo for him. Shampoo. His hair doesn't even grow, so he can probably wipe it off with a washcloth.