The Keys of Marinus [SEP] series
The Keys of Marinus
The Keys of Marinus is the fifth serial in the British science fiction television series "Doctor Who", which was first broadcast on BBC1 in six weekly parts from 11 April to 16 May 1964. Written by Terry Nation and directed by John Gorrie, the serial takes on a "mini-adventures" format, in which the First Doctor (William Hartnell), his granddaughter Susan Foreman (Carole Ann Ford), and her teachers Ian Chesterton (William Russell) and Barbara Wright (Jacqueline Hill
) search for five keys to restore the Conscience of Marinus, a computer which maintains law and order. The group travel to two cities, a jungle, and an icy wasteland in search of the keys.
"The Keys of Marinus" was written to replace a different script which was deemed problematic. When commissioned to write the script, Nation was intrigued by the idea of the TARDIS crew searching for pieces of a puzzle; he and script editor David Whitaker decided to base the serial around a series of "mini