Tamara Taylor

Brennan and Booth are called to the site of an explosion in a Miami hotel where a young woman has been burned to death. Initially, the explosion is thought to be the work of a Colombian drug cartel intending to target Judge Dolores Ramos, the Colombian judicial representative. State Department official Alex Radziwill insists everything to do with Judge Ramos and the case go through him, which becomes both annoying and problematic when he stands in Brennan and Booth’s way as they do their jobs in pursuit of key information about the case. When fingers point to Ramos’ husband and son, Booth and Brennan are shocked to learn who was behind the murderous plot, and how far the State Department will go to protect a murder suspect.

After Booth has a bedroom romp with his ex-girlfriend Rebecca, he gets a call from Brennan about their latest case and agrees to meet her at a condominium construction site. They're led into a partially built unit where they find the gruesome remains of a man dissolving in a bathtub of household cleaning products. After determining the victim had Brittle Bone Disease, they search a database of area BBD victims, all of whom are children, and split up to visit them in hopes of finding a connection to the dead man. When both Brennan and Booth come back with confirmation of the man's identity, they realize he was living a double life with two different families. In what first appears to be a straightforward case of jealousy and insurance money, new clues send Brennan and Booth in a completely different direction and a third suspect is brought to light.

When the bodies of twin teenage boys kidnapped five years earlier are discovered in Pennsylvania, Booth and Brennan find themselves on the trail of the Grave Digger, a notorious serial killer whose M.O. is to kidnap, bury his victims alive and make a single, exorbitant ransom request. If the money is not paid in the specified period of time, there is no further communication and the victims are left to die. During the investigation, Brennan and her scientist colleague Dr. Hodgins become the Grave Digger's latest victims, forced to try to solve their own kidnapping from an underground grave.

Brennan and Booth investigate the death of Brianna Swanson, a young beauty queen whose decomposed remains are discovered at a Washington, DC water filtration plant. Brianna's father is a suspect initially, but new clues lead Brennan and Booth to Brianna's dance school, where they glean key information. Meanwhile, Hodgins works up the nerve to ask Angela out on a date and, after contemplating the pros and cons of dating a coworker, she agrees to go.

When the unearthed 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 undercover the mystery.