Aired 7 years ago - May 13, 2017
The Doctor, Bill and Nardole answer a distress call in deep space, and find themselves trapped on board space station Chasm Forge. All but four of the crew have been murdered – and the dead are still walking! In a future where oxygen is sold by the breath, and space suits are valued more highly than their occupants, the TARDIS crew battle for survival against the darkest evil of all…
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