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When the TARDIS lands in a quarry on Earth, Sarah unearths what appears to be a fossilised hand, buried in one-hundred-fifty-million-year-old strata. Analysis shows the hand to be silicon-based and inert, but when Sarah begins to act as if possessed, the Doctor suspects that it may still be alive…
Length 100 minutes
Tom Baker | Elisabeth Sladen | Stephen Thorne | Judith Paris | Roy Pattison | Roy Skelton | Rex Robinson | Glyn Houston | Frances Pidgeon | John Cannon | David Purcell | Renu Setna | Robin Hargrave | Roy Boyd