In the summer of 2016, the tranquil community of Fulton County, Ohio, was rocked by the mysterious disappearance of 20-year-old Sierah Joughin, who vanished while riding her bike home from her boyfriend’s house. As days turned into an agonizing search for Sierah, her loved ones feared the worst.

ABC News correspondent John Quiñones dives into this chilling case in a new episode of “20/20.” The program delves into the investigation that ultimately uncovered James Worley, a local man with a sinister history and a barn hiding dark secrets.

This two-hour special includes an exclusive interview with Robin Gardner, who survived an earlier abduction attempt by Worley. Viewers will also hear from key individuals in Sierah’s life, such as her mother Sheila Vaculik, aunt Tara Ice, and then-boyfriend Josh Kolasinski. Major Matt Smithmyer from the Fulton County Sheriff’s Office, who led the investigation, provides insight into the case. Additional...