- Country: UK
- Genres: Adventure, Drama, Family
- Release: 1983-01-03
- Director: Ron Jones
- Writers: Johnny Byrne
- Language: English
- Stars: Peter Davison , Sarah Sutton , Leonard Sachs , Michael Gough (I) (1916–2011) , Ian Collier , Colin Baker , Paul Jerricho , Neil Daglish , Elspet Gray , Max Harvey
- Runtime: 25 min
- Awards: N/A
- AKA: Arc of Infinity: Part One (United Kingdom)
- Plot:
On Gallifrey, someone on the high council is perpetrating a treasonous act – transmitting the Doctor’s bio-extract from the space/time matrix to an anti-matter being. On Earth, two English lads spend their last night in Amsterdam …
- IMDB:tt0562829
Season 1
Season 2
Season 3
Season 4
Season 5
Season 6
Season 7
Season 8
Season 9
Season 10
Season 11
Season 12
Season 13
Season 14
Season 15
Season 16
Season 17
Season 18
Season 19
Season 20
Season 21
Season 22
Season 23
Season 24
Season 25
Season 26
Doctor Who Season 20 Cast
Ron Jones
Director
Peter Davison
The Doctor
Sarah Sutton
Nyssa
Leonard Sachs
Lord President Borusa
Michael Gough
(I)
(1916–2011)
Councillor Hedin
Ian Collier
The Renegade
Colin Baker
Commander Maxil
Paul Jerricho
The Castellan
Neil Daglish
Damon
Elspet Gray
Chancellor Thalia
Max Harvey
Cardinal Zorac