You're a Rat

S13, E12: Jonathan is berated by Parvati, Candice and Adam for turning on their Rarotonga alliance. With nothing left to lose, the three of them try to convince the Aitu alliance that Jonathan cannot be trusted. At the Reward Challenge, the castaways are left stunned when one of them reveals some shocking news to the group. The Immunity Challenge tests the Survivors' recollection of the past 30 days of the game. Which castaway's memory will serve them well and keep them safe for another week? At Exile Island, one tribe member's spirit takes a beating. How will their seclusion from the tribe affect their morale?