Written by Terence Dudley
"The dominant emotion on planet Earth is fear. When last we were there, our reception was hostile"
| Episode Title | Premiere Date |
| Episode 1 | 18/01/1982 |
| Episode 2 | 19/01/1982 |
| Episode 3 | 25/01/1982 |
| Episode 4 | 26/01/1982 |
The Doctor has returned Tegan to 1981 — the right time, but the wrong place. The TARDIS has landed on a massive spaceship four days away from Earth. It is the domain of Monarch, a scientific genius of almost god-like power. Monarch rules over three billion of his species, as well as a group of apparently immortal humans from Earth's history. What part has Monarch played in Earth's past, and what are his plans for the future? Will he save humanity from itself, or be its destroyer? It's four to doomsday, and the Doctor has no time to lose finding out.
Cast & Crew
The Doctor: Peter Davison
Adric: Matthew Waterhouse
Nyssa: Sarah Sutton
Tegan Jovanka: Janet Fielding
Persuasion: Paul Shelley
Enlightenment: Annie Lambert
Bigon: Philip Locke
Lin Futu: Burt Kwouk
Producer: John Nathan-Turner
Director: John Black
Scriptwriter: Terence Dudley
