Survivor: Cook Islands

Survivor: Cook Islands is the second season of CBS Survivor.

Twists

 * Edge of Extinction: After being voted out and departing Tribal Council, those who were voted out were given the choice to permanently leave the game or go into the unknown for a chance to come back. After the merge, all castaways remaining on Edge of Extinction will be out of the game.
 * Hidden Immunity Idol: A Hidden Immunity Idol is hidden at each camp, giving a castaway immunity at Tribal Council if played after the votes are cast. The Final 5 is the last time they can be used.
 * Tribe Expansion: With 15 castaways left, a tribe expansion occurred introducing the ​ tribe.