THE REMAINING CASTAWAYS ARE GIVEN THE OPPORTUNITY TO LEAVE THEIR CURRENT TRIBE AND JOIN THE OPPOSING TRIBE, ON "SURVIVOR: COOK ISLANDS," THURSDAY, NOV. 9

"Mutiny!" -- At the Reward Challenge, the remaining castaways are given the opportunity to leave their current tribe and join the opposing tribe, on SURVIVOR: COOK ISLANDS, Thursday, Nov. 9 (8:00-9:00 PM ET/PT), on the CBS Television Network.

The major twist at the Reward Challenge results in betrayal and leaves one tribe stunned. How will this turn of events affect the castaways' morale? Banished to Exile Island, one survivor worries about being away from their tribe at a critical bonding time. One castaway desperately tries to fit in with their tribe, but suddenly finds they're on the outside. One tribe bonds at their reward, sharing mementos from home, while the other tribe struggles to find common ground. And, the ninth person is voted off the island.

CASTAWAYS:

AITUTAKI: J.P. Calderon (4th Voted Off), Cristina Coria (7th Voted Off), Billy Garcia (2nd Voted Off), Ozzy Lusth, Cecilia Mansilla (3rd Voted Off)

MANIHIKI: Rebecca Borman, Sekou Bunch (1st Voted Off), Stephannie Favor (5th Voted Off), Nathan Gonzales, Sundra Oakley

PUKA PUKA: Cao Boi Bui (6th Voted Off), Jenny Guzon-Bae, Yul Kwon, Becky Lee, Brad Virata

RAROTONGA: Adam Gentry, Jonathan Penner, Parvati Shallow, Jessica Smith (8th Voted Off), Candice Woodcock

SURVIVOR: COOK ISLANDS is hosted by Jeff Probst and produced by SEG, Inc. Mark Burnett and Tom Shelly are the executive producers. Doug McCallie and Kevin Greene are co-executive producers.

For more detailed information on SURVIVOR: COOK ISLANDS and the 20 castaways, log on to www.cbs.com/survivor. For more information on the Cook Islands, log on to www.cook-islands.com.

RATING: To Be Announced