Brennan and Booth investigate a small skeleton assumed to be that of a 10-year-old girl; Brennan's father reappears in her life to deliver information from her past.

Potentially radioactive remains emit a green glow at the crime scene.

When Brennan and Booth investigate a body that was found in a crater, evidence suggests that it had been in outer space.

Booth suspects an organized-crime family when a partial skeleton is found encased in concrete, and he tries to lure the suspected killer out of hiding; Brennan gets a surprise visit from her father while visiting her mother's grave.

When a water main bursts at a cemetery, Brennan must identify and help reinter the remains that litter the grounds.

Booth interrupts Brennan's vacation with her boyfriend to get help with the case of a woman whose boneless body was found in a river.

During a murder investigation at the marina, Booth notices similarities between the case and a murder in Brennan's latest book.

The Bancroft family calls on Brennan and Booth to investigate the stabbing death of Terence Bancroft; Agent Sullivan invites Brennan to his basketball game.

After Booth's gun is taken away because he maliciously shot a clown ornament on an ice-cream truck, Brennan must go to Florida alone to investigate the death of a college student whose body is found inside an alligator.

A body Brennan and Booth think is that of Brennan's incarcerated adversary, serial killer Howard Epps, is burned beyond recognition.

Brennan and Booth investigate the case of a mutilated body found on the roof of a federal building; Brennan hears from her long-lost father.

Brennan and Booth investigate when a headless corpse appears in the woods along with a frightening videotape of events on the night of the murder.

Booth and Brennan search for a killer who buries his victims alive and leaves them to die if ransom demands are not met.

The skeletal remains of a federal prosecutor, who disappeared five years earlier, are discovered in the desert outside Las Vegas; an anonymous lead takes Booth and Brennan to the world of gambling and underground ultimate fighting.

Brennan and Booth investigate a young beauty queen's remains that are discovered at a water filtration plant; Hodgins asks Angela out on a date, which she accepts.

Brennan and Booth investigate an explosion in a Miami hotel where a young woman had burned to death.

Booth and Brennan probe what appears to be a case of jealousy and insurance money when a man is found dead at a construction site, but new clues send them in a different direction.

Brennan and her team match wits with a serial killer to save a girl's life.

Wrapped in a shroud, the body of a young man lies beside an overturned garbage truck; Brennan's past as a foster child influences her judgment; Brennan and Cam butt heads over their work styles; Cam makes threats.

The remains of a woman and fetus are found in the Delaware Bay; Brennan and Booth call for a manhunt for the victim's husband; Booth has issues with his ex-wife's boyfriend.

Brennan and Booth investigate the site of a train wreck that includes the bodies of a senator and a high-profile businessman.