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...

Tom Baker
as The Doctor

Elisabeth Sladen
as Sarah Jane Smith

Stephen Thorne
as Kastrian Eldrad

Judith Paris
as Eldrad (female form)

Roy Pattison
as Zazzka

Roy Skelton
as King Rokon

Rex Robinson
as Dr. Carter

Glyn Houston
as Professor Watson

Frances Pidgeon
as Miss Jackson

John Cannon
as Elgin
CinemaSerf
I wonder if anyone at the BBC ever had the presence of mind to just go and buy a quarry? The "Doctor" (Tom Baker) and "Sarah Jane" (Elisabeth Sladen) duly arrive amidst the rockfalls and amongst the rubble, she discovers a disconnected hand. It appears to be made of stone, and is wearing a ring whic...