Season 9

(4 episodes)

On Earth in the 22nd Century, Daleks have enslaved the planet and humans live in fear of their masters. Meanwhile, back in the 20th Century, a peace conference is urgently needed to prevent World War Three. When reports reach UNIT of a ghost at Auderly House, the site for the conference, the Doctor and Jo decide to investigate. Danger is waiting for them there, including a trip two hundred years into the future without the TARDIS...

Written by Louis Marks

(4 episodes)

The TARDIS arrives on the storm-lashed planet of Peladon, just as it is being assessed for its suitability to join the Galactic Federation. Mistaken for Federation delegates from Earth, the Doctor and Jo become involved in a series of dramatic events at the conference. King Peladon's Chancellor has died in mysterious circumstances, and his High Priest is vehemently opposed to the Federation's advances. Amongst the other delegates are hermaphrodite hexapod Alpha Centauri, half-automaton Arcturus, and two Ice Warriors, whose species the Doctor knows as old adversaries. Confined together in the Citadel, they struggle to counter myth and superstition with logic and reason. Is the Curse of Peladon about to strike those who form a union with the Federation? Has the royal beast Aggedor risen to defend the planet's independence? And could one of the delegates actually be working to double-cross the others? The Doctor and Jo must work fast to solve these and other questions, and at the same time stay alive...

Written by Brian Hayles

(6 episodes)

Arrested after the events at Devil's End, the Master has been incarcerated at a top-security prison on a remote island off the south coast of England. When the Doctor and Jo Grant pay a visit to their old enemy, they find him a reformed character. But can the spate of mysterious shipping accidents and garbled reports of sea monsters in the local area really be a coincidence? The Doctor soon finds himself pitted against the Sea Devils, an ancient race of reptiles intent on eliminating Mankind and reclaiming the Earth for themselves...

Written by Malcolm Hulke

(6 episodes)

When a strange message pod turns up at UNIT HQ, the Doctor and his assistant Jo are suddenly involved in another dangerous mission for the Time Lords. The TARDIS takes them to Skybase One above the inhospitable Solos. It is the 30th Century and the planet is about to gain independence from Earth's glorious empire. But someone on Solos has other plans and, alarmingly, the natives are slowly mutating into fierce-looking creatures. It's time for the Doctor and Jo to find out why.

Written by Bob Baker and Dave Martin

(6 episodes)

The Master is back! Assuming the alias of Professor Thascales at the Newton Research Unit at Cambridge University, he harbors his latest deadly plot to seize control of time itself. Can the Doctor and Jo thwart his terrible plan? What secrets does the mysterious trident-shaped crystal hold? Why is the ancient city of Atlantis central to the Master's plan? And what mythical terror lies at the heart of the Maze? With time literally against them, the odds might just be too great for the time travellers.

Written by Robert Sloman