TWO IMMUNITY CHALLENGES SEND THE MERGED TRIBE TO BACK-TO-BACK TRIBAL COUNCILS AND, WITH ALLIANCES TEETERING ON SHAKY GROUND, EVERYONE IS SCRAMBLING FOR THE PROTECTION OF THE HIDDEN IMMUNITY IDOL, ON "SURVIVOR: HEROES VS. VILLAINS," THURSDAY, MAY 6

"A Sinking Ship" - Sensing that he is in danger, a hero makes a bold move to save himself by fooling the entire tribe. Meanwhile, a vicious power struggle emerges in one alliance and two of the strongest villains find themselves pitted against one another, on SURVIVOR: HEROES VS. VILLAINS, Thursday, May 6 (8:00-9:00 PM, ET/PT) on the CBS Television Network.

CASTAWAYS:

Castaways competing on SURVIVOR: HEROES VS. VILLAINS (in alphabetical order separated by tribes):

YIN YANG

RUPERT BONEHAM

DANIELLE DILORENZO

COLBY DONALDSON

RUSSELL HANTZ

AMANDA KIMMEL (Jury, 12th voted out)

JERRI MANTHEY

PARVATI SHALLOW

JAMES "JT" THOMAS JR. (Jury, 11th voted out)

SANDRA DIAZ TWINE

CANDICE WOODCOCK

HEROES VILLAINS

RUPERT BONEHAM TYSON APOSTOL (6th voted out)

JAMES CLEMENT (7th voted out) RANDY BAILEY (3rd voted out)

COLBY DONALDSON DANIELLE DILORENZO

CIRIE FIELDS (4th voted out) RUSSELL HANTZ

AMANDA KIMMEL JERRI MANTHEY

JESSICA "Sugar" KIPER (1st voted out) ROBERT MARIANO (8th voted out)

STEPHENIE LAGROSSA (2nd voted out) PARVATI SHALLOW

JAMES "JT" THOMAS JR. SANDRA DIAZ-TWINE

TOM WESTMAN (5th voted out) BENJAMIN "Coach" WADE (Jury, 9th voted out) CANDICE WOODCOCK COURTNEY YATES (Jury, 10th voted out)

SURVIVOR: HEROES VS. VILLAINS is hosted by Emmy Award-winning host Jeff Probst and produced by SEG, Inc. Mark Burnett and Jeff Probst are executive producers and David Burris and Leisa Francis are co-executive producers.

For more detailed information on SURVIVOR: HEROES VS. VILLAINS and the 20 castaways, log on to www.cbs.com/survivor.

The 20th installment of the groundbreaking series coincides with its 10-year anniversary. For more detailed information on the previous installments of SURVIVOR, please log on to www.cbs.com/survivor