Doctor Who - Season 12 (1974) (season)
![all posters](http://image.pmgstatic.com/cache/resized/w140/files/images/film/posters/165/369/165369941_3292af.jpg)
UK,
1975, 24 min
Plots(1)
The Doctor, Sarah and Harry return to Nerva, but at an earlier point in time. The crew are dying from a space plague but the Doctor suspects a survivor may be responsible. (Prime Video)