The Doctor returns to Peladon fifty years after his last visit, to find Queen Thalira, daughter of the late King Peladon, on the throne. A tense labour dispute between Pel nobility and miners is worsened when apparitions of their deity Aggedor attack and kill several miners. The Galactic Federation desperately needs trisilicate for its war against Galaxy 5 and sends in brutal Ice Warrior troopers to ensure production. The Doctor discovers a devious plot at the heart of Aggedor's appearances.

Jon Pertwee
as The Doctor

Elisabeth Sladen
as Sarah Jane Smith

Nina Thomas
as Queen Thalira

Frank Gatliff
as Chancellor Ortron

Rex Robinson
as Gebek

Ralph Watson
as Ettis

Graeme Eton
as Preba

Michael Crane
as Blor

Terry Walsh
as Guard Captain

Max Faulkner
as Miner
CinemaSerf
Some fifty years after the "Doctor" (now Jon Pertwee) helped the King of "Peladon" lift a terrible curse, he and "Sarah Jane" (Elisabeth Sladen) return to it's citadel to find the new queen (Nina Thomas) being controlled by her chancellor "Ortron" (Frank Gatliff) and facing a rebellion from her oppr...