On a bitter morning in 1980, radio intern Helene Pruszynski is found brutalized in a snowy field. After 37 years of fruitless leads, investigators tap into a public genealogy website that leads them across the country to the killer they’ve been hunting.
The suspicious death of 2-year-old Billy Blankenship is solved when police force his babysitter to re-enact the circumstances of his death. Then, a murder case is solved when the dead man’s body is accidentally found by divers searching underwater for an antique car.