At Casaya, Bruce used extra T-shirts to make a water filtration system, meaning his tribe did not need to boil the dirty water before drinking it. It was popular with some, but Courtney didn't believe it would work. La Mina won camping essentials and the power to choose which member of Casaya would be sent to Exile Island at the Reward Challenge. They chose Bruce, thinking that him being gone would wreck the tribe. Shane's mood swings continued and started problems among his alliance. Casaya won their first Immunity Challenge, and back at La Mina, Dan and Terry got Nick and Austin to vote Misty. Her lie about getting the Hidden Immunity Idol proved to be untrue; she was voted out 5-2.