A twentieth anniversary special featuring the Doctor in all five of his regenerations.
Why are all five Doctors being removed from their separate time-streams? Who is the enemy they will have to unite against? What will become of the Doctors when...
Having left Susan on Earth, the Doctor, Ian and Barbara land the TARDIS on the planet Dido in the year 2493. There they discover two humans, Bennett and Vicki, trapped in their spaceship, the only crew to survive death at the hands of the hostile...
The Doctor is feeling confident: this time the TARDIS has landed on Earth; in England; in 1963. But when he and his companions venture outside, they are soon lost in a maze of ravines and menaced by gigantic insects. And the insects are dying-every...
Time itself is in peril! The three Doctors are united against an old enemy from the distant past of Gallifrey...
Vital cosmic energy is draining into a black hole and the Time Lords are under siege. The Doctor is their only hope but, trapped in the...
Materialising in outer space, the TARDIS is attacked by a missile fired from the dark side of the moon.
Back on Earth, the newly-formed United Nations Intelligence Taskforce, led by Brigadier Lethbridge-Stewart, is disturbed by a series of UFO...
'The Daleks tell me I'm going to do something for them — something I would rather die than do.'
Stranded in Victorian London, separated from his TARDIS and forced to cooperate with the Daleks, it seems that the Doctor's luck has finally run...
With the Doctor behaving rather oddly after his regeneration, the Brigadier finds a scientific research station under attack after a robot steals the plans for a new disintegrator gun.
Could the members of the mysterious Think Tank be responsible...