In November 1993, Hambleton couple Derek and Eileen Severs disappeared. Their adult son Roger told police they’d gone to London, but there was no evidence of that. The clues to finding the Severs were small and seemingly insignificant - a few drops of blood, some green fibers, and dried mud on a car - but with the right forensic analysis, they would tell investigators everything they needed to know. Hosts: Colleen O’Brien, Erica White. Audio Supervisor: Tommy O’Brien. Theme Music: 'The Drama' by Rafael Krux (orchestralis.net).