I'm watching episode 1 right now. A man and a woman (strangers) are left in the jungles of Costa Rica for 21 days with no clothes at all. He brought a firestarter and she brought a machete, that's it.

Yeah, there's a camera crew around for emergencies, but they are on their own. It's on Discovery channel. It's a re-run but it's not old, started June 2013.

They're supposed to be experienced survivalists, but I can just see some kids getting naked and vanishing in the woods because of this show. (I'm thinking of that girl in the mountains.)