The first in an all-new series of productions starring SYLVESTER McCOY, PETER DAVISON and COLIN BAKER.

Gallifrey is in a state of crisis, facing destruction at the hands of an overwhelming enemy. And the Doctor is involved in three different incarnations - each caught up in a deadly adventure, scattered across time and space. The web of time is threatened - and someone wants the Doctor dead.

The three incarnations of the Doctor must join together to set time back on the right track - but in doing so, will they unleash a still greater threat?

Sylvester McCoy is in episode 1 of the four-parter; Peter Davison in episode 2; Colin Baker in episode 3; and all three performers in the final chapter.

This story takes place between "The Five Doctors" and "Warriors of the Deep" (Davison segments); between "The Trial of a Time Lord" and "Time and the Rani" (Baker segments); and prior to the TV movie (McCoy segments).