Doctor Who (1963)
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Elizabeth Norman as Marius' Nurse
Episodes 2
The Invisible Enemy (2)
October 8, 1977
• 25m
15x6
Leela and Lowe take the Doctor to the Bi-Al Foundation for help. But how can they cure an infection of the mind?
Read MoreThe Invisible Enemy (3)
October 15, 1977
• 25m
15x7
Miniaturised clones of the Doctor and Leela are injected into his brain. But they must now fight the virus on its own level. And its servants are closing in around them.
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