Wrong Side of the Tracks (S04E14)

Jackie Markham, a spirited manager of a trucking company, disappears after picking up a prescription close to home. Her friends and family are convinced that the dedicated 51-year-old would never willingly leave her job or her beloved children and grandchildren. A boyfriend reveals that on the night she went missing, she made a cryptic phone call, warning him about a drunken rival at her house. He hurried over, only to find her missing. Although the sheriff remains skeptical, the discovery of her purse in a nearby ditch—close to an area linked to a serial killer—darkens the investigation significantly.