A new advantage was introduced as of this episode. It is called an 'Idol Nullifier'. This allows the person who has the advantage to anonymously play it at any tribal council against someone they expect to play a Hidden Immunity Idol. It the person playing the advantage is correct, it nullifies the idol. If they are incorrect, the advantage is wasted.
Bi Nguyen became the thirteenth person overall to voluntarily leave the game. She chose to do this after spraining her MCL ligament in her knee in the previous challenge.
Exile Island returns this season in this episode.