The plot features FBI Special Agent Seeley Booth and Dr. Temperance Brennan's investigation concerning a human hand that was found inside a bear in Washington state.
[1] To Brennan's dismay, Booth takes her, with Dr. Goodman's permission, to small town Aurora, Washington, to identify the victim whose arm was found inside a black bear.
Since a cannibal would get sick with prion disease, Brennan visits local coroner Dr. Andrew Rigby to ask him if he has met with any patients with such symptoms.
[1] Back at the lab, Dr. Jack Hodgins examines the bear scat Brennan had sent to him and finds a flap of skin with a tattoo, which turns out to be a Haida Sun motif, when recreated by Angela Montenegro.
The victim is Adam Langer, and according to the sheriff, he used to come up to Aurora to visit Sherman Rivers, the town's Native American Park Ranger.