The investigation into a museum curator's death takes a bizarre turn when Castle and Beckett learn he is not the first member of a recent archaeological expedition to die.
Spurned by Deva and Gordon, Carrie is forced to take up a new residence. With his leadership abilities questioned by rival George Hunter and the tribal council, Alex ramps up his efforts to recover the money stolen in the casino heist. Siobhan relives a nightmare when her ex-husband, Breece Connors, shows up looking to reconnect. Lucas is asked to return Proctor's favor.
Following a lead from Brock, Lucas visits a strict Amish schoolteacher who might have insights into the murder of Kinaho tribe member Lana Cleary--and the disappearance of Solomon Bowman. Emmett and Siobhan find transferring a captive Chayton more difficult than expected. Rebecca copes with the pain of her parents' rejection. Proctor offers Alex a peace offering.
An enraged Lucas looks for some trees to shake in an effort to bring down Proctor. After rattling the regulars and strippers at the Savoy, Lucas and his deputies rough up Sharp, a junkyard skinhead, for info on a Proctor-run ecstasy operation. A family crisis brings Carrie, Deva and Gordon together; Alex faces a vote of no-confidence at the tribal council; Job shows off his explosive side.
When a "Jane Doe" with amnesia and covered in blood steps in front of Cho and Van Pelt's car, Patrick Jane must use all of his skills to discover who she is, her last location and why she lost her memory.