After the skull of a promising young dancer is found lodged in concrete at a construction site, the team must first figure out what happened to the victim's skeletal structure. After learning the victim quit ballet to pursue hip hop, Booth and Brennan uncover another layer of evidence that points them to a suspect who had a secret relationship with the victim. Meanwhile, when Hannah is put on assignment in a dodgy part of town, her safety is jeopardized and her life is put in critical danger.

When human remains are discovered in the world's largest chocolate bar, a "sweet" event for a candymaker quickly turns bitter. The team soon discovers that the victim was a mysterious character whose past is full of secrets, lies and love affairs. Meanwhile, Cam struggles with her daughter's decision to attend a university that fails to meet her high standards, and Hodgins asks Angela to arrange a party to announce her not-so-secret pregnancy.