Previously on Survivor... At the immunity challenge Jeff informed the remaining 9 castaways that it would be yet another Double Elimination episode. In the challenge they had to swim out to a bouy and swim down and untie a key, once you untied the key you would swim back and select any box of your choice. The person who unlocked the Box with the red ball would be immediately eliminated from the game, and would become the 4th member of the jury. It was Ozzy who opened up the red ball and he was sent to jury...... For the person who opened the box with the yellow ball, they would win immunity and be safe at tribal council, and it was Jenna who won immunity. At tribal council Rob wasn't ready to leave yet and he played a hidden immunity idol which would nullify any votes he would receive. Well Rob wasted his idol, it was a 6-4 vote between Joe and Russell and ultimately it was Russell Hantz who became the 5th member of the jury.