Harold Henthorn reports that his wife, Toni, has fallen off a cliff, but when rangers arrive on the scene, Toni is dead and Harold's stories don't add up.
As Agent Shott looks into Toni's death, anonymous tips prompt the investigators to look into the death of Harold's first wife, Lynn.
Agent Shott learns more about Harold's strange relationship with his sister-in-law; FBI Agent Jonny Grusing joins Shott on the case.
After a search of Harold's home exposes one of his darkest secrets, Shott and Grusing worry that Harold's daughter, Haley, is in immediate danger.
A hand is found in Yosemite; a serial killer confesses, but he lies about committing many murders.
As Kim and Don bring Henry Lee Lucas, a serial killer, to California to probe into the case of a missing woman, he confesses to strangling a female hitchhiker in Yosemite. Further investigation leads the officers to a death in Summit Meadows.
David Sloan
Producer
Lisa Q. Wolfinger
Rushmore DeNooyer
