So I'll transcribe the preview at the end of the show, for those who didn't see/tape it. Pictures too!
The Yaxha tribe takes desperate measures for food.
Jamie: You want to eat ants?
Gary: We need protein.
Steph: I'm not gonna be eating any ants.
The challenges get tougher.
And Blake hits rock bottom.
Margaret: I'm really really worried about Blake. He's struggling to get breath and something's not right.
Am I the only one getting really annoyed with Blake? So he got hit with some thorns. And yes, he is dehydrated. He's still the only one who can't breathe. Try hiking in Alaska, I'll show him thorns...