Part Four
Series Episode Number: 457World Premiere: Sat 24 Sep 1977 - 6:16pm BST [BBC One] (United Kingdom)
First Broadcast: Thu 19 Jun 1980 - 5:30pm CDT [WTTW 11 Chicago]
Running Time: 23 minutes 12 seconds
9.90 Million (UK)
Appreciation Index: 57 (UK)Chart Position: 28 () (UK)
Recorded on Tue 07 Jun 1977 in Pebble Mill
As the Rutan picks off the remaining humans one by one, the Doctor devises a desperate plan to defeat the alien and repel its approaching mothership.
| Characters | ||
|---|---|---|
| Doctor Who |  | Tom Baker |
| Leela |  | Louise Jameson |
| Reuben |  | Colin Douglas |
| Skinsale |  | Alan Rowe |
| Adelaide |  | Annette Woollett |
| Vince |  | John Abbott |
| Lord Palmerdale |  | Sean Caffrey |
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