主演：约翰·纳特尔斯  丹尼尔·凯西  切瑞·朗吉  Marc Buchner  Tim Woodward  

导演：莎拉·赫林斯  

简介：Acaveinofalocalcanaltunnelunderrestorationrevealstheskeletonsofeightindividuals.Whilemostoftheskeletonsarefromacaveinwhenthecanalwasunderconstructioninthe19thcentury,oneisobviouslyofamorerecentvintage.DentalrecordsidentifyhimasEricEdwardswhowasreportedmissingin1965.Supt.Barnabydelvesintothehistoryofthecanaltosee..bbb