Bones (2005)

S8E24 The Secret in the Siege

Title: The Mystery of the Siege Plot: The Jeffersonian team faces a new challenge as the malevolent tech mastermind, Christopher Pelant, makes a comeback to unsettle them during their latest case. They uncover a disturbing link between a series of murders and FBI agents connected to Booth. As the investigation progresses, Sweets starts to notice troubling similarities in the evidence, prompting Brennan to reassess her relationship with Booth when indications arise that he may be Pelant's next target.