As the number of remaining tribemates dwindles down, Aitu's members are forced to think about turning on each other. Will this strong alliance finally crumble? At the first Immunity Challenge, the Survivors must complete an obstacle course that ends with the most difficult puzzle in Survivor history. Later, endurance is a key factor in the final challenge for Immunity. Who will be the last one standing to secure a chance at $1,000,000? In the end, the final Survivors battle it out to convince the Jury that they are the most deserving of the $1,000,000 prize. Who will walk away with the money and the title of Sole Survivor? (thetvdb.com)