Castaways compete for the biggest reward of the season, and an outburst resulting from the reward challenge could lead to a strategic shift in this week's target. Then, an eerie sense of agreeability around camp causes castaways to second guess their vote before tribal council.

In one of the most emotional reward challenges of the season, castaways fight for their chance to win letters from home. Alliances begin to crumble and individual plans emerge after players compete in a race of balance, speed and puzzle skills to earn immunity and a spot in the final five.