While exploring the islands around their camp, some Aitu tribe members unknowingly land on Raro's island and walk into their camp. The awkward encounter makes the Raro tribe testy when one Aitu tribe member asks for some of Raro's coconuts and spices. Adam catches a large octopus, but Christina, whose bossy attitude is already annoying her tribe, accidentally lets the octopus escape while rinsing it off in the ocean. Trust and individual work ethic becomes a big issue with both tribes. As the Raro tribe continues to be split by gender, will the men of the tribe prove their worth or will they be picked off one by one? Reward Challenge finds two members of each tribe fastened together by a belt to a rope. The other members will push and guide their mates through an obstacle course. Once all the members are free, one member will swim out and retrieve a decoder wheel. After returning to the mat, the members must decipher a quote. Winners receive blankets, two pillows and a hammock. Immunity Challenge has four members of a tribe putting together a puzzle that makes a stretcher. Once completed, another member must swim out and free another member shackled to a pole. After being freed they will swim back to shore with a life ring in tow. On the shore, the rescued member will be placed upon the stretcher and rushed back to their mat. The remaining three members will start a blazing fire that must reach high enough to burn through a rope, lowering the tribe's flag.