The Master, in the guise of Professor Thascalos, has constructed at the Newton Institute in Wootton a device known as TOMTIT - Transmission Of Matter Through Interstitial Time - to gain control over Kronos, a creature from outside time. The creature is summoned but proves to be uncontrollable.
Jon Pertwee , Katy Manning , Roger Delgado , Nicholas Courtney , Richard Franklin , John Levene , Ingrid Pitt , Donald Eccles , Susan Penhaligon
BBC
