Castaways get the biggest reward of the season with surprise letters from home. Then, balance and dexterity are tested at a crucial immunity challenge to guarantee a spot in the final six.

The game is about to change when castaways drop their buffs and come together on the same beach. Castaways must find a hidden advantage to earn a huge lead in the challenge. Then, individual immunity is up for grabs for the first time this season.

It's double the immunity challenges and double the tribal councils in part one of the two-part season 47 finale. Castaways must do damage control after Operation Italy's success.

A castaway risks getting caught red-handed while on the hunt for an advantage in the game. During the immunity challenge, tribes must dig deep to piece together a win to earn a reward and safety at the next tribal council. Then, one castaway from each tribe takes a journey where they must make a big decision that could impact the game.

Two castaways must mend fences after a wild tribal council. The Immunity Challenge leaves one group of castaways with a much-needed reward and safety in the game. Then, a secret advantage leads to a shocking change in the game.

The stakes could not be higher at a crucial, muddy immunity challenge. Castaways must spark a win or flame out at a fire-making showdown to earn their way to the final three. One castaway is crowned Sole Survivor and awarded the $1 million prize.

The fallout from tribal council leaves one castaway feeling like they are on the outs. During the reward challenge tribes must shoot their shot to land a win and earn an advantage.

The classic Survivor auction is back with a twist! One castaway bites into a little more than food, which leads to a game-changing opportunity. Then, another wild tribal council results in the first member of the jury.

In a Survivor first, castaways attempt a shocking negotiation for rice. Then, teams must have their head in the game during a tough reward challenge.

Castaways must choose wisely as they split themselves into pairs at a crucial multi-staged immunity challenge. The deck is stacked against castaways when they embark on a journey that can drastically affect their game. Then, different names are tossed out at camp as paranoia ensues, leading to another crazy tribal council.

Castaways begin to gauge how much they can trust their tribemates. Tribes must wind their way to victory in the challenge to earn safety and fishing gear. Then, a castaway risks getting caught red-handed with important information in the game.

Tensions run high as tribemates begin to get on each other's last nerve at camp. Three castaways go on a journey and make a big decision that will impact the game. Then, in the challenge, tribes must climb their way to the top to earn a reward that will provide comfort at camp as well as safety in the game.

After 20 days in the game, battle lines are drawn, and the stakes cannot be higher. The winner of a classic immunity challenge guarantees their spot in the final seven.

Eighteen new castaways are abandoned on the breathtaking islands of Fiji, where they must learn to adapt or they will be voted out. Tribes must quickly pick up the pieces in the first challenge of the season to earn a pot, machete and flint. Then, two castaways are chosen to go on a journey to find the X that marks the spot.