In the fourth season of this darkly comic procedural drama inspired by true events, forensic anthropologist Dr. Temperance "Bones" Brennan (Emily Deschanel) and FBI Special Agent Seeley Booth (David Boreanaz) continue to crack unsolved murder cases. The season begins with a two-parter in which, during a trip to England, Brennan and Booth find themselves assisting with a high-profile investigation involving the murder of a British heiress.

Episodes:
Yanks in the U.K.
The Man in the Outhouse
The Finger in the Nest
The Perfect Pieces in the Purple Pond
The Crank in the Shaft
The He in the She
The Skull in the Sculpture
The Con Man in the Meth Lab
The Passenger in the Oven
The Bone That Blew
Double Trouble in the Panhandle
Fire in the Ice
The Hero in the Hold
The Princess and the Pear
The Bones That Foam
The Salt in the Wounds
The Doctor in the Den
The Science in the Physicist
The Cinderella in the Cardboard
Mayhem on a Cross
The Double Death of the Dearly Departed
The Girl in the Mask
The Beaver in the Otter
The Critic in the Cabernet
The End in the Beginning