Patrick Brown

Christopher Pelant returns to toy with the Jeffersonian team; an investigation reveals a string of murders tied to FBI agents; Brennan evaluates her relationship with Booth.

The team investigates the death of a young man whose remains were found at a hazardous waste disposal facility; Cam and Arastoo struggle to keep their relationship secret; Brennan and Booth try to decide where to take their vacation.

The team suspects that a man who made his money by donating sperm, was killed by a recipient who learned his records were inaccurate. Meanwhile, Brennan enters a feud with a fellow author.

Martin tracks down a man Jake led him to, and discovers he was Dr Teller's first patient and is now on death row.