The Daleks' Master Plan

The Daleks' Master Plan is the mostly missing third serial of the third season in the British science fiction television series Doctor Who, which originally aired in twelve weekly parts from 13 November 1965 to 29 January 1966. This twelve part serial is the longest with a single director and production code: The Trial of a Time Lord was longer but was made in three production blocks, with separate codes, and with four separate story lines each with their own authors and working titles.