In this challenge, each person on your tribe must post in a sequence. The first number someone will post is 2, and then the next number will multiply it by 13. The first tribe to continue the sequence until all five players have completed the challenge win immunity.
If you mess up your sequence, you have to start all over again. You forfeit the challenge if you post twice. Your sequence will be messed up if two people post the same number from the same tribe.