TRIBES DROP THEIR BUFFS IN A SWITCH THAT WILL SHAKE UP ALLIANCES, ON TWO BACK-TO BACK EPISODES OF "SURVIVOR" WEDNESDAY, MARCH 18

"Winner Winner, Chicken Dinner" and "We're Finally Playing Some Survivor" - Tribes drop their buffs in a switch that will shake up alliances. Also, one castaway struggles after receiving a blow to the head, and another castaway's desire to flex his power in the game could be his greatest weakness, on two back-to-back episodes of SURVIVOR, Wednesday, March 18 (8:00-10:00 PM, ET/PT) on the CBS Television Network.

The battle continues on SURVIVOR:

White Collar (Masaya Tribe)
Tyler Fredrickson
So Kim (Eliminated, 1st Off)
Carolyn Rivera
Max Dawson, Ph.D.
Shirin Oskooi
Joaquin Souberbielle

Blue Collar (Escameca Tribe)
Kelly Remington
Sierra Dawn Thomas
Mike Holloway
Lindsey Cascaddan,
Dan Foley
Rodney Lavoie Jr.

No Collar (Nargarote)
Jenn Brown,
Hali Ford
Joe Anglim
Nina Poersch (Eliminated, 3rd Off)
Vince Sly (Eliminated, 2nd Off)
Will Sims II

SURVIVOR is hosted by Emmy Award-winning host Jeff Probst and produced by SEG, Inc. Mark Burnett and Jeff Probst are executive producers.

For more detailed information on SURVIVOR and the castaways' bios, log on to www.cbs.com/survivor.