This is the week when all the twists finally come together. There will be a double boot which will set up a merge in the following episode. The message in a bottle twist was not revealed last week but will certainly be addressed this week. Speculation has it that the contents of the bottle have something to do with two people from the same tribe going home although the survivors do not learn this until tribal council. Actually the tribe will not learn this until the first person has been voted out, thus creating a super quickie vote for the second elimination.
As for the reward challenge, the winning tribe will be Aitu who gets carried off to some luxury prize literally being carried by the natives. The exilee will be from the Raro tribe and it looks to be either Jonathan or Candice again chosen by Aitu.
The immunity challenge is another water obstacle type challenge in which Aitu wins. Raro goes to tribal council and appears to vote off two ladies, Rebecca and Jenny.
Mentioning a couple things that might not be addressed in this episode, the tribes will merge on the Raro camp. There is evidence suggesting that the 4 pack of Aitu may hold together to become the final 4. And there is even a hint that the final 3 will face the jury and be eligible to win the million. Only time will tell.