Doctor Who (1963鈥�1996) Season 20 Episodes Available now
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Mawdryn Undead: Part 4
Turlough plots with the Black Guardian to bring the Doctor down once and for all.
Mawdryn Undead: Part 3
Mawdryn and his eternal mutants are awake and reveal the truth.
Mawdryn Undead: Part 2
Both Tegan and the Doctor meet the Brigadier but in different time periods.
Mawdryn Undead: Part 1
Caught in a warp ellipse, the TARDIS is drawn to a huge spacecraft orbiting Earth.
Snakedance: Part 4
The Doctor and the original snakedancer Dojeen work to rid the planet of the Mara.
Snakedance: Part 3
The Doctor locates the Great Mind's Eye crystal but it is instrumental in the Mara's plan.
Snakedance: Part 2
Tegan tries to rid her mind of the Mara forever.
Snakedance: Part 1
The Mara is returning home to the planet Manussa, five hundred years after being exiled.
Arc of Infinity: Part 4
Omega has been reborn but as a walking anti-matter bomb.
Arc of Infinity: Part 3
Within the Matrix, the Doctor unmasks Omega and realises the threat is far from over...
