The castaways participate in “Fast Fire” to earn Immunity, which requires them to build a fire on the beach. “Bamboozled” is the Reward Challenge, in which the seven tribemates must race on bamboo structures over the ocean. The winner gets to make two calls on a cell phone. One is to order a slice of pizza that’s delivered by helicopter; the other is a call home. The 10th person is voted off the island.