Bones: Mayhem on a Cross

"Mayhem on a Cross" is twenty-first episode of season fourth of the American crime drama series Bones and the forty-sixth episode of the series overall. It was directed by Craig Ross, Jr. and written by Josh Berman. It first aired on the FOX Network on Tuesday, April 16th, 2009. In this episode, a young camper named Joey comes upon the decomposing remains of a man whose arms are tied behind his back and whose feet have been hacked away. Booth and Brennan conduct their investigation, which leads them to an S&M parlor. Meanwhile, Angela attempts hypnosis in order to remember the name of her one-time ex-husband.