 Booth needs Brennan's help to locate the remains and then determine if they are in fact those of their missing six-year-old.Brennan, Booth, and Zack head to the field, where they find a small, decomposed body.Back in the lab at the Jeffersonian, Brennan, Zack, Angela Montenegro and Dr. Jack Hodgins determine that the body does belong to Charlie Sanders and they are probably looking for a pedophile.