STORY PLOTLINE
The Master, in the guise of Professor Thascales, has constructed at the Newton Institute in Wootton a device known as TOMTIT - Transmission Of Matter Through Interstitial Time - with which to gain control over Kronos, a creature from outside time.
The Doctor shuts TOMTIT down but the Master later reactivates it, using it first to ensnare Krasis, High Priest of the lost city of Atlantis, and then to attack UNIT forces by way of a series of timeslips.
DVD EXTRAS
COMMENT Spoliers ahead
