Editor's note: The air time of this episode has changed.

AFTER A SURPRISING TRIBE SWAP, CASTAWAYS FROM THE "DAVID" AND "GOLIATH" TRIBES MUST LEARN TO WORK TOGETHER, ON "SURVIVOR," WEDNESDAY, OCT. 17

"Time to Bring About the Charmpocalypse" - After a surprising tribe swap, castaways from the "David" and "Goliath" tribes must learn to work together. Also, a castaway's typical bossy nature could rub her new tribe the wrong way, on SURVIVOR, Wednesday, Oct. 17 (8:00-9:01 PM, ET/PT) on the CBS Television Network.

"DAVID" TRIBE

Christian Hubicki, Robotics Scientist

Nick Wilson, Public Defender

Davie Rickenbacker, Social Media Manager

Pat Cusack, Maintenance Manager (1st Eliminated, Medical Evacuation)

Carl Boudreaux, Truck Driver

Jessica Peet, Waitress (2nd Eliminated)

Elizabeth Olson, Kitchen Staff

Gabby Pascuzzi, Technical Writer

Lyrsa Torres, Airline Agent

Bi Nguyen, MMA Fighter

"GOLIATH" TRIBE

John Hennigan, Pro Wrestler

Alec Merlino, Bartender

Jeremy Crawford, Attorney (3rd. Eliminated)

Dan Rengering, S.W.A.T. Officer

Mike White, Filmmaker

Natalia Azoqa, Industrial Engineer

Angelina Keeley, Financial Consultant

Kara Kay, Realtor

Alison Raybould, Physician

Natalie Cole, Publishing CEO

SURVIVOR is hosted by Emmy Award-winning host Jeff Probst and produced by S.E.G. Holdco., LLC. Mark Burnett, Jeff Probst and Matt Van Wagenen are executive producers.

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