Margot Hayhoe

A story of unrequited love set in 1930s London, against the backdrop of grimy streets and public houses.

After an unusual meteor shower leaves most of the human population blind, a merchant navy officer must find a way to conquer tall, aggressive plants which are feeding on people and animals.

After an encounter with the Master, an airline stewardess named Tegan Jovanka becomes an unwitting stowaway aboard the TARDIS as it travels to the planet Logopolis. There, the Doctor discovers that the Master's interference with the Logopolitans' advanced mathematics has unleashed a wave of entropy which threatens to consume the entire universe.

Behind-the-scenes stories from the long-running sci-fi drama. There are tales of stunts that went dangerously wrong and secrets of how the crew brought monsters to life, as well as revelations about how some storylines proved to be so scary the BBC were forced to re-edit episodes.

Tegan falls once more under the influence of the Mara and directs the TARDIS to the planet Manussa. There, the Federator's son Lon and his mother Tanha are preparing for a ceremony to celebrate the banishment of the Mara five hundred years earlier. The Mara takes control of Lon and uses him and Tegan to obtain from Ambril, the Director of Historical Research, the 'Great Crystal' - the large blue stone that originally brought it into being by focusing energy from the minds of the planet's one-time inhabitants. The Mara now plans to use the crystal during the ceremony to bring about its return to corporeal existence.

A look at the career of Peter Grimwade: writer, director and the name behind the eponymous robot phobia syndrome.