Nine veterans are marooned on a bug-infested island with no tools or maps; they must scavenge wreckage to help them survive; insect bites ravage all camps; a large predator stalks one team; Bulent secures fire and chases a protein score.
Bulent struggles with uninvited guests and scrambles to protect his huge meat win; a water migration tests Na'im, Kerra and Justin's raft -- and a mysterious fever puts their challenge at risk; the groups join forces to push north for extraction.
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.
