The Union

The Doctor responds to a distress call from his granddaughter, Susan, taking him to the Diamond Array: a huge multidimensional space station. Once there, his instability increases, as the Fourth and Eighth Doctors discover the Array’s terrible purpose.

Meanwhile, River Song has made a deadly alliance to try to save her husband. And the truth about the Doctor’s degeneration will finally be revealed.

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Frontios

The Doctor, Tegan and Turlough arrive on one of the last human colonies on Frontios, where the colonists appear to be besieged by meteoroid storms. But the real threat is actually below their feet…

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The Zygon Inversion

Shapeshifting Zygons are everywhere in the UK, and there is no way of knowing who to trust. With UNIT neutralised, only the Doctor stands in their way. But how do you stop a war? And what can the Doctor do to save his friends?

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