The Invisible Enemy (3) S7E7 - The Invisible Enemy (3) 1977
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.
- Released: 1977-10-15
- Runtime: 50 minutes
- Genre:
- Stars: Tom Baker, Louise Jameson, John Leeson
- Director: Derrick Goodwin