Fox has released the official synopsis and a small set of photos for the February 4th episode of Bones, "The Doll In The Derby". Angela goes undercover to help solve a case cantering around the death of a roller derby girl.

• Brennan and Booth investigate the death of a female roller derby skater whose body was dismembered.
• In order to get more answers, they enlist Angie to go undercover as a derby skater. Meanwhile, Cam tries to uncover the details behind Booth’s secretive hospital appointments.