After an emotional reunion, Na'im vows to get Rachel to day 21. A group must migrate through a croc-infested swamp. Bulent finally comes nose-to-snout with the elusive pig he's been hunting. A survivalist is forced out of the challenge.

To be rescued, the remaining castaways must hike across jagged, volcanic rock and crumbling cliffs, build a large signal fire, and construct a raft from driftwood and debris. An explosive fight between Na'im and Patrick threatens extraction.