The TARDIS is temporarily captured by the Mandragora Helix, a spiral of energy with a controlling influence, at the centre of which the ship is infiltrated by a sparkling ball of energy.
The travellers then move on to the Dukedom of San Martino in Renaissance Italy, where the Doctor quickly realises that the Mandragora energy is loose. The energy enters an underground temple and reveals itself to the outlawed Brotherhood of Demnos, whose leader, the court astrologer Hieronymous, is instructed to make ready for Mandragora's full appearance.
Hieronymous is a pawn in Count Federico's schemes to usurp his young nephew Giuliano, whose accession to the Dukedom is being marked with a celebratory masque.
At the height of the ball, the Brethren attack the court and kill many guests. Hieronymous, now completely absorbed by Mandragora, confronts the Doctor in the underground temple and attempts to blast him down.
The Doctor, however, has earthed both him
self and the altar so that the energy simply drains away, leaving the planet safe - at least until the constellations are again in the correct configuration for the Helix to make contact.
Tom Baker | Doctor Who | |
William Hartnell | Dr. Who | |
Jon Pertwee | Doctor Who | |
Patrick Troughton | Dr. Who | |
Frazer Hines | Jamie | |
Nicholas Courtney | Brigadier Lethbridge Stewart | |
Pat Gorman | Guard | |
Elisabeth Sladen | Sarah Jane Smith | |
Jacqueline Hill | Barbara Wright | |
William Russell | Ian Chesterton | |
Katy Manning | Jo Grant | |
John Scott Martin | Dalek | |
John Levene | Sergeant Benton | |
Peter Davison | The Doctor | |
Janet Fielding | Tegan | |
John Leeson | K9 | |
Terry Walsh | Primitive | |
Gerald Taylor | Dalek | |
Robert Jewell | Dalek | |
Carole Ann Ford | Susan Foreman | |
Peter Hawkins | Dalek Voices | |
Cy Town | Dalek Operator | |
Roy Skelton | Daleks | |
Wendy Padbury | Zoe | |
Sarah Sutton | Nyssa |
Italy, 1492. Not realising the TARDIS has been infiltrated by the malevolent Mandragora Helix, the Doctor and Sarah arrive in the tiny duchy of San Martino. With the locals preoccupied by the struggle for the Dukedom, will the time travellers be able to resist a force that threatens to drag Earth into a new Dark age?
Italy, 1492. The Mandragora Helix establishes its power base with the Brotherhood of Demnos, while Count Federico plots against his nephew Giuliano, unaware of the danger that threatens them all.
Italy, 1492. Not realising the TARDIS has been infiltrated by the malevolent Mandragora Helix, the Doctor and Sarah arrive in the tiny duchy of San Martino. With the locals preoccupied by the struggle for the Dukedom, will the time travellers be able to resist a force that threatens to drag Earth into a new Dark Age?
Italy, 1492. Not realising the TARDIS has been infiltrated by the malevolent Mandragora Helix, the Doctor and Sarah arrive in the tiny duchy of San Martino. With the locals preoccupied by the struggle for the Dukedom, will the time travellers be able to resist a force that threatens to drag Earth into a new Dark Age?