Forensic anthropologist Temperance "Bones" Brennan and her team work with the FBI to solve murders by identifying victims from their remains in a procedural series inspired by real-life forensic anthropologist and novelist Kathy Reichs.
In the fifth-season premiere, work resumes for Brennan, who's back from a dig in Guatemala, and Booth, anxious to return to duty six weeks after his brain surgery, when Angela's psychic (Cyndi Lauper) suggests there are bodies buried under a fountain in Washington, D.C.
The murder of a secret agent spawns a spook-filled investigation that may lead Brennan and Booth to the top of the CIA. Meanwhile, the Jeffersonian team is in danger of losing an intern to a lack of funding, and the success of Brennan's latest book irks Booth.
When the remains of an Amish youth are discovered near railroad tracks, Brennan and Booth suspect foul play after they learn the young man had been a piano prodigy but disappeared a short time before his Rumspringa, or exploration of the modern world. Meanwhile, Booth helps Cam keep an eye on her stepdaughter.
The discovery of human remains at a neighborhood block party tasks Brennan, Booth and Sweets with sifting through hidden scandals and petty agendas in their search for a suspect. Meanwhile, Parker tries to find a mate for his dad, and Jeffersonian intern Arastoo reveals key facts about his background.
The discovery of an Egyptian mummy missing from an exhibition precedes the murder of the Jeffersonian curator in charge; Brennan goes on a date with Booth's boss; Sweets' girlfriend (Carla Gallo) returns to the lab.
When the remains of an heir to a controversial chicken farm turn up on a riverbank, a murder suspect may be found in the deceased's long list of enemies, including animal-rights activists and disgruntled neighbors.
The team investigates the death of a little person who was one of a wrestling league's well-known characters; Booth finds his marksmanship isn't up to his pre-brain-surgery standards when he's up for recertification.
When Booth's grandfather (Ralph Waite) moves out of a nursing home and in with his grandson, he promptly gets involved in Booth's personal life and an investigation of charred remains found by a real-estate agent.
Brennan and Booth investigate the death of a competitive gamer whose success and business partnerships earned him plenty of admirers---but also lots of enemies. Meanwhile, Hodgins, Sweets and intern Colin Fisher camp out for movie tickets ahead of its premiere.
Brennan and Booth investigate the motive of a failed bank robbery that ended with a man dressed as Santa Claus blowing himself up. Meanwhile, Brennan's father tries to persuade her to spend the holidays with him and a distant relative (Zooey Deschanel) rather than return to Central America.
Brennan and Booth go to New Mexico to investigate the remains of a die-hard UFO believer---with extraterrestrial characteristics---but the work must be done via satellite when the local authorities won't give up the bones. Meanwhile, Angela and intern Wendell divulge their relationship.
Security is tight at the lab when a group of government agents orders Brennan and her team to work on a highly classified case, which prompts Booth and his boss (Diedrich Bader) to bend the rules to determine what's behind the investigation. Meanwhile, Cam is worried that her adopted daughter is keeping a secret from her.
Remains found in a trench at the site of a Civil War battle are found to be those of a 21st-century dentist, but the team has a difficult time finding a cause of death due to a residue that won't come off the bones. Meanwhile, Booth's brother returns from traveling with shocking news.
An investigation of biblical proportions unfolds when Brennan and Booth analyze the unusual remains of a former patient of a sanitarium's doctor (Joshua Malina). Meanwhile, Jeffersonian intern Arastoo Vaziri discloses a secret about his past.
A subway accident reveals the corpse of an author who was embroiled in a love triangle. Meanwhile, Sweets, a passenger on the derailed train, is stressed out in the aftermath of the incident; and Brennan's second book becomes an instant best seller.
Brennan and Booth recall their first case together six years ago, when FBI agent Booth recruited Brennan's team of scientists, whose uncanny instincts and investigative work supported his suspicions about an influential judge. Zack: Eric Millegan.
Brennan and Booth pose as a married couple at her high-school reunion, where they search for clues about the death of one of her classmates, which may have something in common with another murder committed 15 years ago.
Human remains discovered inside a shark may be those of an aquarium's guest lecturer, but another interesting aspect of the investigation emerges when Brennan observes the predatory nature of a marine biologist (Rena Sofer) with her eye on Booth.
As Brennan and Booth head to a rock-and-roll fantasy camp to investigate the death of a wealthy daredevil, whose body was found in a hotel's washing machine, Angela's familiarity with the music industry aids the probe back at the lab. Meanwhile, Cam tries to find the right doctor for Michelle (Tiffany Hines).
Brennan and Booth get a quick tutorial in Wicca after two bodies, one dating to the 17th-century Salem witch trials, are discovered in a cabin in the woods. Meanwhile, Hodgins and Angela wind up in jail thanks to the former's driving style, so Sweets and intern Clark Edison are forced to take on new responsibilities. Written by Kathy Reichs, the forensic expert whose novels inspired the series.
Heather Taffet (Deirdre Lovejoy), aka the Grave Digger, goes on trial, but what should be an open-and-shut case finds the Jeffersonian team burning the midnight oil to find enough evidence for a guilty verdict. Max: Ryan O'Neal.
In the fifth-season finale, the strange death of a hoarder puts the team to work sifting through his many possessions for clues. Meanwhile, Angela gets a visit from her father, Billy F. Gibbons (as himself).