When Sherry Leighty goes missing in 1999, her family is left wondering how a dedicated mother of three could vanish without a trace. A decade later, the cold case heats up when Sherry's sister launches a social media campaign to help solve her sister's mysterious disappearance. An online tip unearths the killer truth and a sinister family secret. This episode features an interview with Shelly Leighty, who never gave up on solving her sister's case, along with rare home video of Sherry and her family not long before she disappeared.