Avalon Harmonia lends her expertise when the remains of a psychic are found rotting in the trunk of a tree. But Hodgins is angered when she claims to see Sweets' ghost; and Angela is put in the middle of the crossfire. Booth and Brennan are divided about Christine's new imaginary friend; and the team remembers Sweets on his birthday.
When an affluent school teacher is found dead in an abandoned bookstore, the teachers and students at her school become suspects in the case. Meanwhile, Brennan's publisher encourages her to join Twitter to help grow her fan base, and "squintern" Jessica Warren teaches Brennan some tricks to master the Twitter-verse, skills Brennan enthusiastically puts to use.
When the body of an ex-con is found in pieces, the Jeffersonian team investigates a local bakery known for employing former felons. But they soon learn that the victim was involved in a robbery gone bad, and start targeting suspects from the ex-con's past. Meanwhile, "squintern" Arastoo Vaziri, must decide whether to return to Iran to visit his dying brother, which causes friction between him and Cam.
A miniature golf star's death reveals the sport's highly competitive nature. Meanwhile, Brennan is afraid that her dad is dabbling in crime again; and Wendell asks Hodgins to help him fix his girlfriend's family heirloom.
A high-stakes gambler's remains are discovered in an industrial shredder, but Booth's history of addiction comes into play when he and Brennan investigate the world of underground poker. Meanwhile, Hodgins invents a lab-related product.
A private high school student's remains are found in a ditch and bullying may have played a role in her death, but Brennan isn't so sure it's murder when she finds similarities between her own teen years and the victim's.
With only 48 hours before the execution of serial killer Alex Rockwell, whom Brennan and Booth helped convict, the Jeffersonian team must race against the clock to confirm Brennan's new suspicion that Rockwell may not have been responsible for those crimes.
Arastoo is kidnapped by a member of the Iranian parliament to help him with a murder case, so Booth and Cam head to the Middle East to expose the killer before it's too late. Meanwhile, Brennan is concerned about Booth's gambling habit, and asks Aubrey to protect her and Christine from her husband's bookie.
A cookie-jar collector's body is found near a river, and the killer may be a fellow kitchenware enthusiast. Meanwhile, Booth struggles to accept Brennan's decision to move out of their house due to his gambling addiction.
The remains of an ex-con and biker who became a yoga instructor are found in the ruins of a forest fire, and the investigation casts a wide net in both worlds to find the killer. Meanwhile, Booth continues to fight his gambling addiction.
As the team investigates a murder, evidence found in the crime scene reminds them of an old enemy. Elsewhere, Angela worries about Hodgins' and her decision, while Booth and Brennan consider a life without the Jeffersonian.
While Booth and Bones take the next step in their lives, the other members of the Jeffersonian are adjusting to the change. Aubrey is taking up his new role in the FBI and looking forward to his next case.
Booth and Brennan return to their old jobs and work on the case of a man whose organs had been harvested and sold. Meanwhile, Cam struggles with choosing work over her relationship with Arastoo and Hodgins encourages Angela to showcase her photography.
A political journalist is found dead after writing an article exposing corruption at the NSA, and Hodgins becomes paranoid when he's convinced their investigation is being closely monitored. Meanwhile, the team gathers for Thanksgiving.
To solve a murder, Brennan and Booth go undercover at an Old West-style shooting competition, while Angela and Hodgins discuss the future of their family and Cam gets close with photographer Sebastian Kohl.