THE CASAYA ALLIANCE IS FORCED TO VOTE OUT ONE OF THEIR OWN, ON "SURVIVOR: PANAMA -- EXILE ISLAND," THURSDAY, APRIL 27

"Perilous Scramble" -- Since Terry has possession of the hidden Immunity Idol, it's clear the Casaya alliance will have to vote out one of their own at the next Tribal Council, on SURVIVOR: PANAMA -- EXILE ISLAND, Thursday, April 27 (8:00-9:00 PM, ET/PT) on the CBS Television Network.

As the winner of all three individual Immunity Challenges, Terry knows he must win again if he wants to stay in the game. Will he be able to win his fourth straight Individual Immunity or will he have to finally use the hidden Immunity Idol he found on Exile Island? Either way, it's clear the Casaya alliance will have to eat one of their own at the next Tribal Council.

When the remaining six are split into two teams of three to compete in the Reward Challenge, the excitement is taken to a new level when the winning team learns they get the chance to compete in a second individual Reward Challenge to win a GMC Yukon. Which lucky castaway walks away with this season's biggest reward so far?

As the end of the game nears, the survivors begin to focus on the pros and cons of who they remain aligned with. Can Terry finally talk any of the survivors into forming a new alliance? With new threats emerging in the game, everyone seems to have their own ideas of what should happen at Tribal Council. Find out whose manipulative ways win out.

And, the eleventh tribe member departs the island.

CASTAWAYS:
Dan Barry, 52, S. Hadley, Mass., Retired Astronaut (6th Voted Off)
Aras Baskauskas, 24 Santa Monica, Calif., Yoga Instructor
Austin Carty, 24, High Point, N. Carolina, Author (8th Voted Off)
Terry Deitz, 46, Simsbury, Conn., Airline Pilot/Retired Navy Fighter Pilot
Danielle DiLorenzo, 24, Pompano Beach, Fla. (originally from Boston), Medical Sales
Cirie Fields, 35, Walterboro, S. Carolina, Registered Nurse
Misty Giles, 24, Dallas, Engineer (3rd Voted Off)
Melinda Hyder, 32, Sevierville, Tenn., Singer (2nd Voted Off)
Bruce Kanegai, 58, Simi Valley, Calif., Karate Instructor/High School Art Teacher (10th to depart due to illness)
Courtney Marit, 31, Los Angeles, Performance Artist
Bobby Mason, 32, Los Angeles, Attorney (5th Voted Off)
Ruth Marie Milliman, 48, Greenville, S. Carolina, Director of Retail Leasing (4th Voted Off)
Shane Powers, 35, Los Angeles, Owner, Entertainment Marketing Company
Tina Scheer, 45, Hayward, Wisc., Logging Sports Performer/Promoter (1st Voted Off)
Sally Schumann, 27, Chicago, Social Worker (9th Voted Off)
Nick Stanbury, 25, Tempe, Ariz., Financial Sales (7th Voted Off)

SURVIVOR: PANAMA -- EXILE ISLAND is 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: PANAMA -- EXILE ISLAND and the 16 new castaways, log on to www.cbs.com/survivor.

RATING: To Be Announced