Retired commander of the United Nations' Intelligence Taskforce, and long-time associate of the mysterious time traveler the Doctor, Brigadier Alistair Lethbridge-Stewart faces the toughest battle of his military career when he is embroiled in a plot unwittingly set in motion by university chancellor Victoria Waterfield, herself a former companion of the Doctor, to take over the Earth by an evil alien entity called the Great Intelligence, aided by its ferocious robot Yeti cohorts. Can the Brigadier defeat this menace to the Earth without the Doctor's help?
as Brigadier Alistair Gordon Lethbridge-Stewart
as Sarah Jane Smith
as Victoria Waterfield
as Professor Travers
as 'Harrods' Haroldson
as Christopher Rice
as Anthony the D.J.
as Captain Douglas Cavendish
as Kate Lethbridge-Stewart
as Chilly
as Daniel Hinton
as Lama