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...
as The Doctor
as Adric
as Nyssa
as Tegan Jovanka
as The Master / The Portreeve
as Head of Security
as Ruther
as Shardovan
as Mergrave
as Child
as The Doctor (archive footage)
as The Watcher (archive footage)
