The Doctor fails to prevent the Thals from destroying the Kaled city but they don't have long to enjoy their victory before the Daleks attack.
- Directed by
- David Maloney
- Written by
- Terry Nation
Guest stars
All episodes — Season 12
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S12 E1Robot (1)
Dec 28, 19746.625 min
The Doctor changes form again. Before he has fully re-covered, something of colossal strength steals a secret weapon, and the convalescent Doctor starts to investigate.
S12 E2Robot (2)
Jan 4, 19756.425 min
The Doctor and Sarah Jane become convinced Think Tank are behind the electronic component thefts but are unable to stop them carrying out another raid.
S12 E3Robot (3)
Jan 11, 19756.725 min
Sarah Jane and Kettlewell infiltrate an SRS meeting to try and find out what Miss Winters is up to but there is a surprise in store.
S12 E4Robot (4)
Jan 18, 19756.925 min
UNIT attempt to get into the bunker to stop Miss Winters setting off the world's nuclear missiles but first they have to get past the K1.
S12 E5The Ark in Space (1)
Jan 25, 19759.125 min
The Doctor's attempt to give Harry a trip in the TARDIS sees the two of them and Sarah Jane arriving onboard a space station in the far future, with some rather deadly security mechanisms.
S12 E6The Ark in Space (2)
Feb 1, 19758.725 min
The Doctor and Harry revive the Ark's medtech, Vira, to help Sarah Jane. But when station commander Noah is revived, he becomes suspicious of the newcomers.