Eighteen castaways, separated into two tribes of men vs. women, are stranded on the remote islands of Vanuatu in the South Pacific. After a shocking welcoming ceremony with a local tribe, the nine men and nine women are sent their separate ways to search for their camps at night. At first light, both tribes struggle to make fire and build shelter. Lopevi (the men's tribe) is shocked when Chad reveals that he is an amputee, having lost his right leg below the knee only 20 months earlier. Over at Yasur (the women's tribe), Eliza's constant chatter and Twila's workaholic attitude are rubbing some the wrong way.