Over at the safehouse, Charley's working outside on the boat, and it's finally occurred to John that, you know, they haven't talked to Cameron or Derek (who haven't checked in either, it appears), and he's figured out that Sarah didn't tell Cameron and Derek where they were going. "They wouldn't understand," says Sarah. Shit, I don't understand! Sarah says she doesn't trust them anymore, and neither should John, but John defends Derek by saying he made a human mistake, and that Derek just did it because he loved her. "There seems to be a lot of that going around these days," says Sarah. John looks out the window at Charley and asks, pointedly, if that's such a bad thing. "I'm not here for Charley," says Sarah.
"Okay, then, why are we here?" he asks. Sarah says they're here for him. "People matter, John; they're all that matters. Don't ever forget that."
Flashback to the jungle again, with Sarah peering through her binoculars at their campsite. John's not there. She starts looking for him, and yells his name, but there's no answer. After a moment, though, there's the click of a gun behind her. She puts up her arms. It's John, gleeful because he's won. "I was alone, and you couldn't find me. That's the game, right?" Sarah, choked up, practically crying, hugs him and says yes, he won.
So Sarah's already managed an appointment with a doctor, who checks her neck and jaw and asks when she found the lump, and Sarah says it was a few days ago. The doctor asks about other symptoms, like sudden weight loss, and Sarah says she's been feeling nauseated, but she figured it was stress. "Work?" After a long pause, Sarah says, "Yeah. Work." Well, this is sorta her job. So a quick test later and the doctor has some good news for Sarah: the lump in her breast isn't a tumour, but a cystic mass, which isn't uncommon. But what's unusual is that Sarah's lump has formed around a tiny piece of metal. A wire. "You don't know how it got there?" the doctor asks a surprised Sarah, who hasn't had any surgery lately or had any implants removed.
Sarah thinks hard, and what she does remember is Ed Winston from Desert Canyon Heat and Air injecting her in the back of the van. "It's a transmitter," she says. And then three quick scenes in succesion: a khaki-clad water delivery man wheeling cooler bottles through the clinic reception area (who pulls out a cellphone displaying a map grid with a little red dot beeping on the screen, two guys in the same uniform in a van following Derek and Cameron as they leave the safehouse, and a final dude wheeling some crates up to the front door of the lighthouse. Nice security system, Charley.