PA: Viewer discretion is advised.

BRENNAN AND BOOTH DISCOVER A KILLER'S DESERT BURIAL GROUND AND GO UNDERCOVER AS HIGH-ROLLERS ON "BONES" FRIDAY, JULY 20, ON FOX

When the unearthed skeletal remains of Mason Roberts, a federal prosecutor who disappeared five years earlier, are discovered in the desert outside Las Vegas, Brennan and Booth suspect his death may be tied to the mob. The body count in the desert rises when vultures lead them to the recent remains of a young woman, just a few yards away. Booth suspects the same person may have been responsible for both deaths, but the woman's injuries lead Brennan to believe she has a long history of domestic abuse and her husband may have been responsible for her demise. Brennan and Booth question the deceased woman's husband, who denies he hurt his wife, but leads them to a Vegas loan shark. When an anonymous lead takes them into the world of gambling and underground ultimate fighting, Booth and Brennan go undercover as Vegas high-rollers. Booth takes his turn in the ring and risks his life in a desperate effort to uncover the mystery of "The Woman in the Sand" on BONES airing Friday, July 20 (8:00-9:00 PM ET/PT) on FOX. (BON-208) (TV-14 L, V)

Cast: Emily Deschanel as Dr. Temperance Brennan; David Boreanaz as FBI Special Agent Seeley Booth; TJ Thyne as Dr. Jack Hodgins; Michaela Conlin as Angela Montenegro; Eric Millegan as Zack Addy

Guest Cast: Tamara Taylor as Dr. Camille "Cam" Saroyan; Nelson Lee as Special Agent Eric Zhang; Chad Todhunter as Don Morgan; John Marshall Jones as Joe Noland; Karl Makinen as Frank "Frankie" Daniels; Joe Cortese as Lou Mackey; Shontae Saldana as Marisol Diaz; Theo Rossi as Nick Arno; Aaron D. Spears as Agent Walt Sugarman; Dawn Maree as Dealer; Jason Windt as Pit Boss; Tom Billett as Referee

[EDITOR'S NOTE: The previously announced BON-210 has been rescheduled to July 27.]