(4 episodes)
When the Doctor and the recently regenerated Romana arrive on a radioactive planet, the Time Lord has the strangest feeling that he has been there before. Exploring the ruins of an old city, it is not long before they discover the disturbing truth. The TARDIS has materialised on Skaro, original home to the evil Daleks. But who are the mysterious Movellans and what terrible treasure are the Daleks seeking? The answer lies deep beneath the city...
Written by Terry Nation
(4 episodes)
Whilst on holiday in Paris, the Doctor and Romana discover that something is very amiss with time. Who is disrupting it, and what connects them to the Mona Lisa? The answers lead them to discover a secret that has been hidden for four hundred million years...
Written by David Agnew (Douglas Adams, Graham Williams and David Fisher)
(4 episodes)
Making a forced materialisation on Chloris, the Doctor, Romana and K9 become embroiled in the political machinations of its ruler, the dastardly Lady Adrasta. The lush vegetation of the planet's surface hides a ragtag group of bandits, a giant eggshell, man-eating Wolfweeds and, within the depths of an old mining pit, something very large has a terrible secret which threatens the destruction of Chloris itself...
Written by David Fisher
(4 episodes)
Two spacecraft fuse in a hyperspace collision, and with the dimensional instabilities threatening everyone aboard, it’s fortunate the Doctor, Romana and K-9 arrive to help. But when a crewmember is found clawed by a ferocious creature, it seems there’s something even more frightening stalking the corridors. But what can this have to do with a zoologist, Professor Tryst, his CET projection machine, and a planet called Eden?
Written by Bob Baker
(4 episodes)
The Skonnon ships have returned to the skies of Aneth, demanding tribute. But as the final consignment is being taken to Skonnos, an accident forces the ship off course.
Written by Anthony Read
(6 episodes)
Chris Parsons finds an old book in an ageing professor's library. He soon finds himself aboard an invisible spaceship, chased by monsters made of molten rock, and attacked by mind-control zombies. Chris also meets a strange man with a very long scarf who claims he can travel through time and space... in a police box.
Written by Douglas Adams