Episode 1
A terrifying Kansas serial killer reemerges after 30 years. Using DNA technology and help from the media, investigators race to prevent another murder.
Episode 2
A serial shooter targets random pedestrians on the Phoenix streets, leading detectives on a desperate hunt for a criminal driven to kill for sport.
Episode 3
After multiple gay men sharing similar features go missing in Toronto, detectives follow an international tip with horrific claims of cannibalism.
Episode 4
As more men vanish, a fresh task force assembles. New surveillance footage and recovered computer files provide a final chance to identify the killer.
