Release Message:  The city of Castrovalva and its untroubled people would seen an ideal place for the Doctor to recover, but a dire warning from Adric (Matthew Waterhouse), held captive by The Master, makes it seen less so.

Description:  The city of Castrovalva and its untroubled people would seen an ideal place for the Doctor to recover, but a dire warning from Adric, held captive by The Master, makes it seen less so.