Doctor Who - The Invasion (2 Disc Set) [DVD] [1968]

Investigating the disappearance of an eminent scientist, the Doctor and his companions follow his trail to the London headquarters of International Electromatics, a global supplier of electronic equipment run by the formidable Tobias Vaughan. Teaming up with the newly-formed United Nations Intelligence Taskforce--UNIT--under the command of Brigadier Lethbridge-Stewart, it soon becomes apparent that Vaughan is working to his own sinister agenda. As Cybermen invade in cities all over the world, can the Doctor convince Vaughan to help him defeat their plan for global domination? This story was originally broadcast on BBC1 between 2nd November and 21st December 1968, produced by Peter Bryant and directed by Douglas Camfield.