Gervase and Marissa Peterson

Uncle and niece, Gervase Peterson and Marissa Peterson, will be among the castaways competing on SURVIVOR: BLOOD VS. WATER, when the Emmy Award-winning series returns for its 27th season with a special 90 minute premiere, Wednesday, Sept. 18 (8:00-9:30 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton CBS © 2013 CBS Broadcasting, Inc. All Rights Reserved.