An unexpected twist sends the castaways scrambling for new alliances.
One tribe finds itself divided by gender.
One tribe finds its way to the other tribe's island.
Win or lose, both tribes must vote one of their own off the island.
One castaway collapses at the Reward Challenge.
At the Reward Challenge, the remaining castaways are given the opportunity to leave their current tribe and join the opposing tribe.
A sealed message in a bottle leads one tribe to an unexpected twist.
The tribes merge and Yul attempts to change the course of the game.
With only eight castaways left, Jonathan is in the hot seat with certain tribe members after turning on his former alliance.
With only seven castaways left, the Loved Ones arrive in hopes of winning the reward.
With only six castaways left, outsiders Parvati and Adam fight to stay in the game.
The SURVIVOR: COOK ISLAND's finale will begin with five castaways and the winner determined among the final three when the series finale is broadcast on a special night.