Overview

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...

Details

Cast

Tom Baker

Elisabeth Sladen

Stephen Thorne

Judith Paris

Roy Pattison

Roy Skelton

Rex Robinson

Glyn Houston

Frances Pidgeon

John Cannon