“My Brother Keeper” Tina Wesson, Gervase Peterson and Caleb Bankston compete in the Immunity Challenge during the ninth episode of SURVIVOR: BLOOD vs. WATER, Wednesday, Nov. 13 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.