Release Date
09 May, 1970
Runtime
02:46: (HH:MM)
Synopsis
UNIT is providing security cover at an experimental drilling project at Eastchester, designed to penetrate the Earth's crust and release a previously untapped source of energy. Soon, however, the drill head starts to leak an oily green liquid that transforms those who touch it into vicious primeval creatures with a craving for heat. The Doctor is accidentally transported "sideways in time" by the partially repaired TARDIS control console into a parallel universe where the drilling project is at a more advanced stage. Thwarted by his friends' ruthless alter egos, he works to save both universes.
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Actors
Jon Pertwee
Caroline John
Nicholas Courtney
John Levene
Olaf Pooley
Christopher Benjamin
Derek Newark
David Simeon
Derek Ware
Roy Scammell
Pat Gorman
Barry Letts
Derek Martin
Crew
Ron Grainer
Terrance Dicks
Delia Derbyshire
Douglas Camfield
