The Doctor needs somewhere peaceful to recover from his traumatic regeneration. But the sanctuary of Castrovalva is not all it seems, as the Master will stop at nothing to gain his revenge over the Doctor...
The Doctor
Adric
Nyssa
Tegan Jovanka
The Master / The Portreeve
Head of Security
Ruther
Shardovan
Mergrave
Child
The Doctor (archive footage)
The Watcher (archive footage)
